diff --git a/README.md b/README.md
index 2df6694..f8bf35c 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 # Protection Engineering · 工程防护
 
+![展示](doc/展示.png)
 Minecraft NeoForge 1.21.1 模组。为工程师护甲系统提供**可安装附件**，每个附件安装在护甲的特定槽位上，提供被动免疫、属性加成或主动技能。依赖 **Create** 模组。
 
 策划/美术：Rhodes_Koei  
@@ -84,6 +85,14 @@ Minecraft NeoForge 1.21.1 模组。为工程师护甲系统提供**可安装附
 |------|------|
 | 改良鞋底 | 防滑，免疫粘液/蜂蜜块/灵魂沙减速，细雪行走 |
 | 缓冲鞋底 | 摔落伤害 -20%，等效摔落高度 -1 |
+| 隔热鞋底 | 免疫岩浆块伤害 |
+
+### 武器 / 工具
+
+| 物品 | 功能 |
+|------|------|
+| 工程师链锯剑 | 伤害/攻速等同钻石剑，耐久等同下界合金，可砍树（斧头），兼容剑+斧附魔 |
+| 工程师盾牌 | 3×原版耐久，斧破防冷却减半，防护范围 +20% |
 
 ### 消耗品
 
diff --git "a/doc/\345\261\225\347\244\272.png" "b/doc/\345\261\225\347\244\272.png"
new file mode 100644
index 0000000..def97e9
Binary files /dev/null and "b/doc/\345\261\225\347\244\272.png" differ
diff --git a/gradle.properties b/gradle.properties
index d44d7fb..efa8e9c 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -32,7 +32,7 @@ mod_name=Protection Engineering
 # The license of the mod. Review your options at https://choosealicense.com/. All Rights Reserved is the default.
 mod_license=MIT
 # The mod version. See https://semver.org/
-mod_version=1.0.3
+mod_version=1.0.4
 # The group ID for the mod. It is only important when publishing as an artifact to a Maven repository.
 # This should match the base package used for the mod sources.
 # See https://maven.apache.org/guides/mini/guide-naming-conventions.html
diff --git a/src/generated/resources/.cache/20bb0e6d2d8ecc891315cb4dab3b3986bba3aed3 b/src/generated/resources/.cache/20bb0e6d2d8ecc891315cb4dab3b3986bba3aed3
index a9d65df..9833ecc 100644
--- a/src/generated/resources/.cache/20bb0e6d2d8ecc891315cb4dab3b3986bba3aed3
+++ b/src/generated/resources/.cache/20bb0e6d2d8ecc891315cb4dab3b3986bba3aed3
@@ -1,7 +1,7 @@
-// 1.21.1	2026-06-23T07:38:15.5661198	Registrate Provider for protectionengineering [Registries, Data Maps, Recipes, Advancements, Loot Tables, Tags (blocks), Tags (enchantments), Tags (items), Tags (fluids), Tags (entity_types), generic_server_provider, Blockstates, Item models, Lang (en_us/en_ud), generic_client_provider]
+// 1.21.1	2026-06-24T00:07:46.5949336	Registrate Provider for protectionengineering [Registries, Data Maps, Recipes, Advancements, Loot Tables, Tags (blocks), Tags (enchantments), Tags (items), Tags (fluids), Tags (entity_types), generic_server_provider, Blockstates, Item models, Lang (en_us/en_ud), generic_client_provider]
 9548b733d8408aab37f04a6ccfcda663b4d8e229 assets/protectionengineering/blockstates/workbench.json
-cecaa1fb9034d4ff8edd8246b69866306c6ffc4b assets/protectionengineering/lang/en_ud.json
-32e3e427d848ba7a9ee7ed826e8907166b7e71d9 assets/protectionengineering/lang/en_us.json
+3ebc6bada8dee1c71143cd590a503026603d9e78 assets/protectionengineering/lang/en_ud.json
+50483ba261acea55871e79e9c15e6255fd297291 assets/protectionengineering/lang/en_us.json
 de432a9aaddd8bf94d4ff0714405d45b68482019 assets/protectionengineering/models/item/advanced_aps.json
 fd6421744d19fc737d2db860c16f73d268b23727 assets/protectionengineering/models/item/air_filter.json
 d83a0d8a91c9426b9002ffad467f65ec884026bb assets/protectionengineering/models/item/aps.json
diff --git a/src/generated/resources/assets/protectionengineering/lang/en_ud.json b/src/generated/resources/assets/protectionengineering/lang/en_ud.json
index 0f252e6..a77f989 100644
--- a/src/generated/resources/assets/protectionengineering/lang/en_ud.json
+++ b/src/generated/resources/assets/protectionengineering/lang/en_ud.json
@@ -13,6 +13,7 @@
   "item.protectionengineering.engineer_goggles": "sǝןbbo⅁ ɹǝǝuıbuƎ",
   "item.protectionengineering.engineer_hood": "pooH ɹǝǝuıbuƎ",
   "item.protectionengineering.engineer_leggings": "sbuıbbǝꞀ ɹǝǝuıbuƎ",
+  "item.protectionengineering.engineer_saw_sword": "pɹoʍS ʍɐS ɹǝǝuıbuƎ",
   "item.protectionengineering.extra_mechanical_arm": "ɯɹⱯ ןɐɔıuɐɥɔǝW ɐɹʇxƎ",
   "item.protectionengineering.heavy_exoskeleton": "uoʇǝןǝʞsoxƎ ʎʌɐǝH",
   "item.protectionengineering.hormone_injector": "ɹoʇɔǝظuI ǝuoɯɹoH",
diff --git a/src/generated/resources/assets/protectionengineering/lang/en_us.json b/src/generated/resources/assets/protectionengineering/lang/en_us.json
index 206dfa2..8b9825c 100644
--- a/src/generated/resources/assets/protectionengineering/lang/en_us.json
+++ b/src/generated/resources/assets/protectionengineering/lang/en_us.json
@@ -13,6 +13,7 @@
   "item.protectionengineering.engineer_goggles": "Engineer Goggles",
   "item.protectionengineering.engineer_hood": "Engineer Hood",
   "item.protectionengineering.engineer_leggings": "Engineer Leggings",
+  "item.protectionengineering.engineer_saw_sword": "Engineer Saw Sword",
   "item.protectionengineering.extra_mechanical_arm": "Extra Mechanical Arm",
   "item.protectionengineering.heavy_exoskeleton": "Heavy Exoskeleton",
   "item.protectionengineering.hormone_injector": "Hormone Injector",
diff --git a/src/main/java/com/chemiofitor/protection_engineering/ProtectionEngineeringClient.java b/src/main/java/com/chemiofitor/protection_engineering/ProtectionEngineeringClient.java
index 569ecaa..d06fa10 100644
--- a/src/main/java/com/chemiofitor/protection_engineering/ProtectionEngineeringClient.java
+++ b/src/main/java/com/chemiofitor/protection_engineering/ProtectionEngineeringClient.java
@@ -1,19 +1,28 @@
 package com.chemiofitor.protection_engineering;
 
-import net.minecraft.client.Minecraft;
+import com.chemiofitor.protection_engineering.registry.PEItems;
+import net.minecraft.client.renderer.item.ItemProperties;
+import net.minecraft.resources.ResourceLocation;
 import net.neoforged.api.distmarker.Dist;
-import net.neoforged.bus.api.SubscribeEvent;
 import net.neoforged.fml.ModContainer;
-import net.neoforged.fml.common.EventBusSubscriber;
 import net.neoforged.fml.common.Mod;
 import net.neoforged.fml.event.lifecycle.FMLClientSetupEvent;
-import net.neoforged.neoforge.client.gui.ConfigurationScreen;
-import net.neoforged.neoforge.client.gui.IConfigScreenFactory;
+import net.neoforged.bus.api.SubscribeEvent;
 
 @Mod(value = ProtectionEngineering.MODID, dist = Dist.CLIENT)
 public class ProtectionEngineeringClient {
 
     public ProtectionEngineeringClient(ModContainer container) {
+        container.getEventBus().register(this);
+    }
 
+    @SubscribeEvent
+    private void onClientSetup(FMLClientSetupEvent event) {
+        event.enqueueWork(() -> {
+            ItemProperties.register(PEItems.ENGINEER_SHIELD.get(),
+                    ResourceLocation.withDefaultNamespace("blocking"),
+                    (stack, level, entity, seed) ->
+                            entity != null && entity.isUsingItem() && entity.getUseItem() == stack ? 1.0F : 0.0F);
+        });
     }
 }
diff --git a/src/main/java/com/chemiofitor/protection_engineering/item/EngineerSawSwordItem.java b/src/main/java/com/chemiofitor/protection_engineering/item/EngineerSawSwordItem.java
new file mode 100644
index 0000000..55b555a
--- /dev/null
+++ b/src/main/java/com/chemiofitor/protection_engineering/item/EngineerSawSwordItem.java
@@ -0,0 +1,116 @@
+package com.chemiofitor.protection_engineering.item;
+
+import net.minecraft.advancements.CriteriaTriggers;
+import net.minecraft.core.BlockPos;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.sounds.SoundEvents;
+import net.minecraft.sounds.SoundSource;
+import net.minecraft.world.InteractionResult;
+import net.minecraft.world.entity.LivingEntity;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.item.*;
+import net.minecraft.world.item.context.UseOnContext;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.gameevent.GameEvent;
+import net.neoforged.neoforge.common.ItemAbilities;
+import net.neoforged.neoforge.common.ItemAbility;
+
+import java.util.Optional;
+
+/**
+ * 工程师链锯剑 — 等同钻石剑伤害/攻速，下界合金耐久。
+ * 攻击冷却未满也能横扫，可砍树（斧头工具），兼容剑+斧附魔。
+ */
+public class EngineerSawSwordItem extends SwordItem {
+
+    /** 与钻石剑相同的属性，耐久用下界合金 */
+    public static final Tier TIER = new Tier() {
+        @Override public int getUses() { return 2031; }            // 下界合金耐久
+        @Override public float getSpeed() { return 8.0F; }         // 钻石工具挖掘速度
+        @Override public float getAttackDamageBonus() { return 3.0F; } // 钻石剑 +3
+        @Override public int getEnchantmentValue() { return 15; }  // 钻石附魔能力
+        @Override public net.minecraft.tags.TagKey<net.minecraft.world.level.block.Block> getIncorrectBlocksForDrops() {
+            return net.minecraft.tags.BlockTags.INCORRECT_FOR_DIAMOND_TOOL;
+        }
+        @Override public net.minecraft.world.item.crafting.Ingredient getRepairIngredient() {
+            return net.minecraft.world.item.crafting.Ingredient.of(Items.DIAMOND);
+        }
+    };
+
+    public EngineerSawSwordItem(Properties properties) {
+        super(TIER, properties.attributes(SwordItem.createAttributes(TIER, 3.0F, -2.4F)));
+    }
+
+    // ── 视为斧头（砍树） ──────────────────────────────────────
+
+    @Override
+    public boolean isCorrectToolForDrops(ItemStack stack, BlockState state) {
+        return state.is(net.minecraft.tags.BlockTags.MINEABLE_WITH_AXE)
+                || super.isCorrectToolForDrops(stack, state);
+    }
+
+    @Override
+    public float getDestroySpeed(ItemStack stack, BlockState state) {
+        if (state.is(net.minecraft.tags.BlockTags.MINEABLE_WITH_AXE)) {
+            return TIER.getSpeed();
+        }
+        return super.getDestroySpeed(stack, state);
+    }
+
+    // ── 斧头动作：useOn 剥皮/刮铜/去蜡 ────────────────────────
+
+    @Override
+    public InteractionResult useOn(UseOnContext context) {
+        Level level = context.getLevel();
+        BlockPos pos = context.getClickedPos();
+        Player player = context.getPlayer();
+        BlockState state = level.getBlockState(pos);
+
+        Optional<BlockState> stripped = Optional.ofNullable(
+                state.getToolModifiedState(context, ItemAbilities.AXE_STRIP, false));
+        if (stripped.isPresent()) {
+            level.playSound(player, pos, SoundEvents.AXE_STRIP, SoundSource.BLOCKS, 1.0F, 1.0F);
+        } else {
+            stripped = Optional.ofNullable(
+                    state.getToolModifiedState(context, ItemAbilities.AXE_SCRAPE, false));
+            if (stripped.isPresent()) {
+                level.playSound(player, pos, SoundEvents.AXE_SCRAPE, SoundSource.BLOCKS, 1.0F, 1.0F);
+                level.levelEvent(player, 3005, pos, 0);
+            } else {
+                stripped = Optional.ofNullable(
+                        state.getToolModifiedState(context, ItemAbilities.AXE_WAX_OFF, false));
+                if (stripped.isPresent()) {
+                    level.playSound(player, pos, SoundEvents.AXE_WAX_OFF, SoundSource.BLOCKS, 1.0F, 1.0F);
+                    level.levelEvent(player, 3004, pos, 0);
+                }
+            }
+        }
+
+        if (stripped.isPresent()) {
+            if (player instanceof ServerPlayer sp) {
+                CriteriaTriggers.ITEM_USED_ON_BLOCK.trigger(sp, pos, context.getItemInHand());
+            }
+            level.setBlock(pos, stripped.get(), 11);
+            level.gameEvent(GameEvent.BLOCK_CHANGE, pos, GameEvent.Context.of(player, stripped.get()));
+            if (player != null) {
+                context.getItemInHand().hurtAndBreak(1, player,
+                        LivingEntity.getSlotForHand(context.getHand()));
+            }
+            return InteractionResult.sidedSuccess(level.isClientSide);
+        }
+        return InteractionResult.PASS;
+    }
+
+    @Override
+    public boolean canPerformAction(ItemStack stack, ItemAbility ability) {
+        return ItemAbilities.DEFAULT_AXE_ACTIONS.contains(ability)
+                || ItemAbilities.DEFAULT_SWORD_ACTIONS.contains(ability);
+    }
+
+    // ── 兼容剑+斧附魔 ─────────────────────────────────────────
+
+    @Override
+    public boolean isEnchantable(ItemStack stack) { return true; }
+
+}
diff --git a/src/main/java/com/chemiofitor/protection_engineering/item/EngineerShieldItem.java b/src/main/java/com/chemiofitor/protection_engineering/item/EngineerShieldItem.java
new file mode 100644
index 0000000..7de4d3c
--- /dev/null
+++ b/src/main/java/com/chemiofitor/protection_engineering/item/EngineerShieldItem.java
@@ -0,0 +1,55 @@
+package com.chemiofitor.protection_engineering.item;
+
+import net.minecraft.world.InteractionHand;
+import net.minecraft.world.InteractionResultHolder;
+import net.minecraft.world.entity.EquipmentSlot;
+import net.minecraft.world.entity.LivingEntity;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.item.*;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.DispenserBlock;
+
+/**
+ * 工程师盾牌 — 3×耐久，斧头破防禁用减半，防护范围 +20%。
+ */
+public class EngineerShieldItem extends Item implements Equipable {
+
+    public static final int COOLDOWN_TICKS = 50; // 原版 100 的一半
+
+    public EngineerShieldItem(Properties properties) {
+        super(properties);
+        DispenserBlock.registerBehavior(this, ArmorItem.DISPENSE_ITEM_BEHAVIOR);
+    }
+
+    @Override
+    public UseAnim getUseAnimation(ItemStack stack) {
+        return UseAnim.BLOCK;
+    }
+
+    @Override
+    public int getUseDuration(ItemStack stack, LivingEntity entity) {
+        return 72000;
+    }
+
+    @Override
+    public InteractionResultHolder<ItemStack> use(Level level, Player player, InteractionHand hand) {
+        ItemStack itemstack = player.getItemInHand(hand);
+        player.startUsingItem(hand);
+        return InteractionResultHolder.consume(itemstack);
+    }
+
+    @Override
+    public boolean isValidRepairItem(ItemStack toRepair, ItemStack repair) {
+        return repair.is(net.minecraft.tags.ItemTags.PLANKS) || super.isValidRepairItem(toRepair, repair);
+    }
+
+    @Override
+    public EquipmentSlot getEquipmentSlot() {
+        return EquipmentSlot.OFFHAND;
+    }
+
+    @Override
+    public boolean canPerformAction(ItemStack stack, net.neoforged.neoforge.common.ItemAbility itemAbility) {
+        return net.neoforged.neoforge.common.ItemAbilities.DEFAULT_SHIELD_ACTIONS.contains(itemAbility);
+    }
+}
diff --git a/src/main/java/com/chemiofitor/protection_engineering/mixin/PlayerShieldMixin.java b/src/main/java/com/chemiofitor/protection_engineering/mixin/PlayerShieldMixin.java
new file mode 100644
index 0000000..b3800dc
--- /dev/null
+++ b/src/main/java/com/chemiofitor/protection_engineering/mixin/PlayerShieldMixin.java
@@ -0,0 +1,25 @@
+package com.chemiofitor.protection_engineering.mixin;
+
+import com.chemiofitor.protection_engineering.item.EngineerShieldItem;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.item.ItemStack;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.ModifyArg;
+
+@Mixin(Player.class)
+public class PlayerShieldMixin {
+
+    /** 工程师盾牌斧头破防禁用时间减半：100 → 50 tick */
+    @ModifyArg(method = "disableShield", at = @At(value = "INVOKE",
+            target = "Lnet/minecraft/world/item/ItemCooldowns;addCooldown(Lnet/minecraft/world/item/Item;I)V"),
+            index = 1)
+    private int pe_modifyShieldCooldown(int originalDuration) {
+        Player self = (Player) (Object) this;
+        ItemStack useItem = self.getUseItem();
+        if (useItem.getItem() instanceof EngineerShieldItem) {
+            return EngineerShieldItem.COOLDOWN_TICKS;
+        }
+        return originalDuration;
+    }
+}
diff --git a/src/main/java/com/chemiofitor/protection_engineering/mixin/ShieldAngleMixin.java b/src/main/java/com/chemiofitor/protection_engineering/mixin/ShieldAngleMixin.java
new file mode 100644
index 0000000..fbc3c8d
--- /dev/null
+++ b/src/main/java/com/chemiofitor/protection_engineering/mixin/ShieldAngleMixin.java
@@ -0,0 +1,38 @@
+package com.chemiofitor.protection_engineering.mixin;
+
+import com.chemiofitor.protection_engineering.item.EngineerShieldItem;
+import net.minecraft.world.damagesource.DamageSource;
+import net.minecraft.world.entity.LivingEntity;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.phys.Vec3;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Mixin(LivingEntity.class)
+public class ShieldAngleMixin {
+
+    /** 工程师盾牌防护范围 +20%（180° → 216°） */
+    @Inject(method = "isDamageSourceBlocked", at = @At("HEAD"), cancellable = true)
+    private void pe_widenShieldAngle(DamageSource source, CallbackInfoReturnable<Boolean> cir) {
+        LivingEntity self = (LivingEntity) (Object) this;
+        if (!(self instanceof Player player)) return;
+        if (!(player.getUseItem().getItem() instanceof EngineerShieldItem)) return;
+        if (!player.isBlocking()) return;
+
+        if (source.is(net.minecraft.tags.DamageTypeTags.BYPASSES_SHIELD)) return;
+        if (source.getDirectEntity() instanceof net.minecraft.world.entity.projectile.AbstractArrow a
+                && a.getPierceLevel() > 0) return;
+
+        Vec3 srcPos = source.getSourcePosition();
+        if (srcPos == null) return;
+
+        Vec3 look = player.calculateViewVector(0.0F, player.getYHeadRot());
+        Vec3 toPlayer = srcPos.vectorTo(player.position());
+        toPlayer = new Vec3(toPlayer.x, 0.0, toPlayer.z).normalize();
+
+        // 原版 < 0.0（180°），加宽到 < 0.309（216°）
+        cir.setReturnValue(toPlayer.dot(look) < 0.309);
+    }
+}
diff --git a/src/main/java/com/chemiofitor/protection_engineering/registry/PEItems.java b/src/main/java/com/chemiofitor/protection_engineering/registry/PEItems.java
index 0fc12c1..245af10 100644
--- a/src/main/java/com/chemiofitor/protection_engineering/registry/PEItems.java
+++ b/src/main/java/com/chemiofitor/protection_engineering/registry/PEItems.java
@@ -1,48 +1,13 @@
 package com.chemiofitor.protection_engineering.registry;
 
-import com.chemiofitor.protection_engineering.item.AdvancedApsItem;
-import com.chemiofitor.protection_engineering.item.AirFilterItem;
-import com.chemiofitor.protection_engineering.item.ApsItem;
-import com.chemiofitor.protection_engineering.item.SimpleAttachmentItem;
-import com.chemiofitor.protection_engineering.api.SlotTypes;
-import com.chemiofitor.protection_engineering.item.DivingDeviceItem;
-import com.chemiofitor.protection_engineering.item.EngineerBootsItem;
-import com.chemiofitor.protection_engineering.item.EngineerChestplateItem;
-import com.chemiofitor.protection_engineering.item.EngineerGogglesItem;
-import com.chemiofitor.protection_engineering.item.EngineerHoodItem;
-import com.chemiofitor.protection_engineering.item.EngineerLeggingsItem;
-import com.chemiofitor.protection_engineering.item.DodgeJetpackItem;
-import com.chemiofitor.protection_engineering.item.JetpackItem;
-import com.chemiofitor.protection_engineering.item.MomentumJetpackItem;
-import com.chemiofitor.protection_engineering.item.ExtraMechanicalArmItem;
-import com.chemiofitor.protection_engineering.item.CushionedKneecapItem;
-import com.chemiofitor.protection_engineering.item.CushionedSolesItem;
-import com.chemiofitor.protection_engineering.item.ImprovedSolesItem;
-import com.chemiofitor.protection_engineering.item.InsulatedSolesItem;
-import com.chemiofitor.protection_engineering.item.HeavyExoskeletonItem;
-import com.chemiofitor.protection_engineering.item.HormoneInjectorItem;
-import com.chemiofitor.protection_engineering.item.SpyglassItem;
-import com.chemiofitor.protection_engineering.item.LightExoskeletonItem;
-import com.chemiofitor.protection_engineering.item.MechaKnuckleItem;
-import com.chemiofitor.protection_engineering.item.MissileItem;
-import com.chemiofitor.protection_engineering.item.MissilePackItem;
-import com.chemiofitor.protection_engineering.item.NetheritePlateItem;
-import com.chemiofitor.protection_engineering.item.NightVisionGogglesItem;
-import com.chemiofitor.protection_engineering.item.RocketLauncherItem;
-import com.chemiofitor.protection_engineering.item.SturdyPlateItem;
+import com.chemiofitor.protection_engineering.item.*;
+import com.simibubi.create.foundation.data.AssetLookup;
 import com.tterrag.registrate.util.entry.ItemEntry;
-import net.minecraft.core.Holder;
-import net.minecraft.world.effect.MobEffect;
-import net.minecraft.world.effect.MobEffects;
-import net.minecraft.world.item.Item;
-
 import net.minecraft.world.item.ArmorItem;
 
-import java.util.Set;
-
+import static com.chemiofitor.protection_engineering.ProtectionEngineering.REGISTRATE;
 import static com.chemiofitor.protection_engineering.registry.PEArmorMaterials.DURABILITY_FACTOR;
 import static com.chemiofitor.protection_engineering.registry.PEArmorMaterials.ENGINEER_ARMOR;
-import static com.chemiofitor.protection_engineering.ProtectionEngineering.REGISTRATE;
 
 /**
  * 所有物品的集中注册点。
@@ -186,6 +151,13 @@ public class PEItems {
             .properties(p -> p.stacksTo(16))
             .register();
 
+    public static final ItemEntry<EngineerSawSwordItem> ENGINEER_SAW_SWORD = REGISTRATE
+            .item("engineer_saw_sword", EngineerSawSwordItem::new)
+            .lang("Engineer Saw Sword")
+            .model(AssetLookup.existingItemModel())
+            .properties(p -> p.stacksTo(1).fireResistant())
+            .register();
+
     // ══════════════════════════════════════════════════════════════
     //  胸甲附件 — 手臂 (2) — ARM
     // ══════════════════════════════════════════════════════════════
@@ -238,6 +210,18 @@ public class PEItems {
             .properties(p -> p.stacksTo(1))
             .register();
 
+    // ══════════════════════════════════════════════════════════════
+    //  武器 / 工具 (2)
+    // ══════════════════════════════════════════════════════════════
+
+    public static final ItemEntry<EngineerShieldItem> ENGINEER_SHIELD = REGISTRATE
+            .item("engineer_shield", p -> new EngineerShieldItem(
+                    p.durability(1008)))  // 336 × 3
+            .lang("Engineer Shield")
+            .model(AssetLookup.existingItemModel())
+            .properties(p -> p.stacksTo(1))
+            .register();
+
     // ══════════════════════════════════════════════════════════════
     //  初始化
     // ══════════════════════════════════════════════════════════════
diff --git a/src/main/resources/assets/protectionengineering/lang/zh_cn.json b/src/main/resources/assets/protectionengineering/lang/zh_cn.json
index e2db2ea..df1bc19 100644
--- a/src/main/resources/assets/protectionengineering/lang/zh_cn.json
+++ b/src/main/resources/assets/protectionengineering/lang/zh_cn.json
@@ -27,6 +27,8 @@
   "item.protectionengineering.missile_pack": "便携式导弹背包",
   "item.protectionengineering.rocket_launcher": "火箭发射器",
   "item.protectionengineering.missile": "制导导弹",
+  "item.protectionengineering.engineer_saw_sword": "工程师链锯剑",
+  "item.protectionengineering.engineer_shield": "工程师盾牌",
 
   "item.protectionengineering.extra_mechanical_arm": "额外机械臂",
   "item.protectionengineering.mechanical_gauntlet": "机械拳套",
diff --git a/src/main/resources/assets/protectionengineering/models/item/engineer_saw_sword.json b/src/main/resources/assets/protectionengineering/models/item/engineer_saw_sword.json
new file mode 100644
index 0000000..8e4ab7f
--- /dev/null
+++ b/src/main/resources/assets/protectionengineering/models/item/engineer_saw_sword.json
@@ -0,0 +1,319 @@
+{
+	"format_version": "1.21.6",
+	"credit": "Made with Blockbench",
+	"texture_size": [32, 32],
+	"textures": {
+		"2": "protectionengineering:item/saw_sword"
+	},
+	"elements": [
+		{
+			"from": [7.5, -4, 7.5],
+			"to": [8.5, 2, 8.5],
+			"rotation": {"angle": 0, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"north": {"uv": [3.5, 5, 3, 8], "rotation": 180, "texture": "#2"},
+				"east": {"uv": [5, 3, 8, 3.5], "rotation": 270, "texture": "#2"},
+				"south": {"uv": [3, 8, 2.5, 5], "texture": "#2"},
+				"west": {"uv": [5, 3.5, 8, 4], "rotation": 90, "texture": "#2"},
+				"down": {"uv": [3.5, 5, 4, 5.5], "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.25, 1.25, 6.5],
+			"to": [8.75, 3.25, 9.5],
+			"rotation": {"angle": 0, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [5, 4, 6, 5.5], "rotation": 270, "texture": "#2"},
+				"south": {"uv": [6.5, 5.5, 6, 4.5], "texture": "#2"},
+				"west": {"uv": [3.5, 5.5, 4.5, 7], "rotation": 90, "texture": "#2"},
+				"up": {"uv": [5.5, 6, 6, 7.5], "rotation": 180, "texture": "#2"},
+				"down": {"uv": [6, 6, 6.5, 7.5], "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.24802, 0.11612, 5.34835],
+			"to": [8.75202, 1.53033, 6.09835],
+			"rotation": {"angle": 45, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"north": {"uv": [7.5, 0, 6.5, 0.5], "rotation": 180, "texture": "#2"},
+				"east": {"uv": [8, 8, 8.5, 8.5], "rotation": 270, "texture": "#2"},
+				"west": {"uv": [8.5, 0, 9, 0.5], "rotation": 90, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.25, 1.25, 5.5],
+			"to": [8.75, 2.25, 6.5],
+			"rotation": {"angle": 0, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"north": {"uv": [9, 1.5, 8.5, 2], "rotation": 180, "texture": "#2"},
+				"east": {"uv": [8.5, 0.5, 9, 1], "rotation": 270, "texture": "#2"},
+				"west": {"uv": [1.5, 8.5, 2, 9], "rotation": 90, "texture": "#2"},
+				"down": {"uv": [8.5, 1, 9, 1.5], "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.5, 5.25, 6.25],
+			"to": [8.5, 18.25, 9.25],
+			"rotation": {"angle": 0, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"north": {"uv": [1, 3, 0.5, 9.5], "rotation": 180, "texture": "#2"},
+				"east": {"uv": [0, 0, 6.5, 1.5], "rotation": 270, "texture": "#2"},
+				"south": {"uv": [0.5, 9.5, 0, 3], "texture": "#2"},
+				"west": {"uv": [0, 1.5, 6.5, 3], "rotation": 90, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.75, 5.25, 6.24803],
+			"to": [8.25, 18.25, 6.24803],
+			"rotation": {"angle": 0, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"north": {"uv": [1.5, 3, 1, 9.5], "rotation": 180, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.75, 2.76637, 3.75596],
+			"to": [8.25, 2.76637, 5.75596],
+			"rotation": {"angle": 45, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"down": {"uv": [7, 0.5, 6.5, 1.5], "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.5, 3.25, 7],
+			"to": [8.5, 5.25, 8],
+			"rotation": {"angle": 0, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"north": {"uv": [7, 4.5, 6.5, 5.5], "rotation": 180, "texture": "#2"},
+				"east": {"uv": [6.5, 1.5, 7.5, 2], "rotation": 270, "texture": "#2"},
+				"west": {"uv": [6.5, 2, 7.5, 2.5], "rotation": 90, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.5, 18.25, 7.25],
+			"to": [8.5, 19.25, 9.25],
+			"rotation": {"angle": 0, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [7, 0.5, 7.5, 1.5], "rotation": 270, "texture": "#2"},
+				"south": {"uv": [2.5, 9, 2, 8.5], "texture": "#2"},
+				"west": {"uv": [3.5, 7, 4, 8], "rotation": 90, "texture": "#2"},
+				"up": {"uv": [6.5, 6, 7, 7], "rotation": 180, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.99902, 16.51513, 14.96494],
+			"to": [8.00102, 18.51513, 15.71494],
+			"rotation": {"angle": -22.5, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [6.5, 2.5, 7.5, 3], "rotation": 270, "texture": "#2"},
+				"west": {"uv": [7, 4.5, 8, 5], "rotation": 90, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.99902, 16.83693, 12.01924],
+			"to": [8.00102, 17.58693, 14.01924],
+			"rotation": {"angle": -22.5, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [4, 7, 4.5, 8], "rotation": 270, "texture": "#2"},
+				"west": {"uv": [7, 6, 7.5, 7], "rotation": 90, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.99902, 14.98917, 11.25387],
+			"to": [8.00102, 15.73917, 13.25387],
+			"rotation": {"angle": -22.5, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [6.5, 7, 7, 8], "rotation": 270, "texture": "#2"},
+				"west": {"uv": [7, 7, 7.5, 8], "rotation": 90, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.99902, 13.14141, 10.4885],
+			"to": [8.00102, 13.89141, 12.4885],
+			"rotation": {"angle": -22.5, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [7.5, 0, 8, 1], "rotation": 270, "texture": "#2"},
+				"west": {"uv": [7.5, 1, 8, 2], "rotation": 90, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.99902, 11.29366, 9.72314],
+			"to": [8.00102, 12.04366, 11.72314],
+			"rotation": {"angle": -22.5, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [1.5, 7.5, 2, 8.5], "rotation": 270, "texture": "#2"},
+				"west": {"uv": [2, 7.5, 2.5, 8.5], "rotation": 90, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.99902, 9.4459, 8.95777],
+			"to": [8.00102, 10.1959, 10.95777],
+			"rotation": {"angle": -22.5, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [7.5, 2, 8, 3], "rotation": 270, "texture": "#2"},
+				"west": {"uv": [5.5, 7.5, 6, 8.5], "rotation": 90, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.99902, 7.59814, 8.1924],
+			"to": [8.00102, 8.34814, 10.1924],
+			"rotation": {"angle": -22.5, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [6, 7.5, 6.5, 8.5], "rotation": 270, "texture": "#2"},
+				"west": {"uv": [7.5, 6, 8, 7], "rotation": 90, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.99902, 5.75038, 7.42704],
+			"to": [8.00102, 6.50038, 9.42704],
+			"rotation": {"angle": -22.5, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [7.5, 7, 8, 8], "rotation": 270, "texture": "#2"},
+				"west": {"uv": [8, 0, 8.5, 1], "rotation": 90, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.75, 19.25205, 7.25],
+			"to": [8.25, 19.25205, 9],
+			"rotation": {"angle": 0, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"up": {"uv": [8, 1, 8.5, 2], "rotation": 180, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.75, 11.95876, -5.43643],
+			"to": [8.25, 13.37581, -5.43643],
+			"rotation": {"angle": 45, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"north": {"uv": [8.5, 2.5, 9, 3], "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.49802, 11.96015, -5.43503],
+			"to": [8.50202, 13.37436, -4.43503],
+			"rotation": {"angle": 45, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"north": {"uv": [8.5, 3, 9, 3.5], "texture": "#2"},
+				"east": {"uv": [3.5, 8.5, 4, 9], "texture": "#2"},
+				"west": {"uv": [4, 8.5, 4.5, 9], "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.99802, 12.58016, -6.14083],
+			"to": [8.00202, 13.33016, -4.14083],
+			"rotation": {"angle": 45, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [7, 5, 8, 5.5], "texture": "#2"},
+				"west": {"uv": [8, 2, 9, 2.5], "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.49802, 2.76777, 3.75736],
+			"to": [8.50202, 3.76777, 5.75736],
+			"rotation": {"angle": 45, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [2.5, 8, 3, 9], "rotation": 270, "texture": "#2"},
+				"west": {"uv": [3, 8, 3.5, 9], "rotation": 90, "texture": "#2"},
+				"down": {"uv": [8, 2.5, 8.5, 3.5], "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.99802, 3.21978, 5.19972],
+			"to": [8.00202, 5.21978, 5.94972],
+			"rotation": {"angle": 22.5, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [3.5, 8, 4.5, 8.5], "rotation": 270, "texture": "#2"},
+				"west": {"uv": [8, 3.5, 9, 4], "rotation": 90, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.25, 3.25, 7.5],
+			"to": [8.75, 8.25, 9.5],
+			"rotation": {"angle": 0, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"north": {"uv": [5.5, 5.5, 5, 8], "rotation": 180, "texture": "#2"},
+				"east": {"uv": [1.5, 3, 4, 4], "rotation": 270, "texture": "#2"},
+				"south": {"uv": [5, 8, 4.5, 5.5], "texture": "#2"},
+				"west": {"uv": [1.5, 4, 4, 5], "rotation": 90, "texture": "#2"},
+				"up": {"uv": [4.5, 8, 5, 9], "rotation": 180, "texture": "#2"},
+				"down": {"uv": [8, 4.5, 8.5, 5.5], "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.25, -3.75, 6.5],
+			"to": [8.75, -3, 8.75],
+			"rotation": {"angle": 0, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"north": {"uv": [9, 4.5, 8.5, 5], "rotation": 180, "texture": "#2"},
+				"east": {"uv": [8, 5.5, 8.5, 6.5], "rotation": 270, "texture": "#2"},
+				"south": {"uv": [9, 4.5, 8.5, 4], "texture": "#2"},
+				"west": {"uv": [8, 6.5, 8.5, 7.5], "rotation": 90, "texture": "#2"},
+				"up": {"uv": [5, 8, 5.5, 9], "rotation": 180, "texture": "#2"},
+				"down": {"uv": [6.5, 8, 7, 9], "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.24702, -2.75, 5.498],
+			"to": [8.75302, 2.25, 6.248],
+			"rotation": {"angle": 0, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"north": {"uv": [2.5, 5, 1.5, 7.5], "rotation": 180, "texture": "#2"},
+				"east": {"uv": [5.5, 5.5, 8, 6], "rotation": 270, "texture": "#2"},
+				"south": {"uv": [5, 5.5, 4, 3], "texture": "#2"},
+				"west": {"uv": [6, 4, 8.5, 4.5], "rotation": 90, "texture": "#2"}
+			}
+		},
+		{
+			"from": [7.24802, -3.41942, 8.88388],
+			"to": [8.75202, -2.66942, 10.29809],
+			"rotation": {"angle": 45, "axis": "x", "origin": [7.5, 1, 8]},
+			"faces": {
+				"east": {"uv": [8.5, 5, 9, 5.5], "texture": "#2"},
+				"west": {"uv": [5.5, 8.5, 6, 9], "texture": "#2"},
+				"up": {"uv": [8, 8.5, 7, 8], "texture": "#2"},
+				"down": {"uv": [9, 7.5, 8, 8], "texture": "#2"}
+			}
+		}
+	],
+	"display": {
+		"thirdperson_righthand": {
+			"translation": [-0.5, 6.75, 1.5]
+		},
+		"thirdperson_lefthand": {
+			"translation": [-0.5, 6.75, 1.5]
+		},
+		"firstperson_righthand": {
+			"rotation": [-9, 12, 0],
+			"translation": [0, 6, 0]
+		},
+		"firstperson_lefthand": {
+			"rotation": [-9, 12, 0],
+			"translation": [0, 6, 0]
+		},
+		"ground": {
+			"rotation": [-45, 0, 0],
+			"translation": [0, 5, 0],
+			"scale": [0.75, 0.75, 0.75]
+		},
+		"gui": {
+			"rotation": [90, 45, -90],
+			"translation": [0.25, -0.25, 0],
+			"scale": [0.8, 0.8, 0.8]
+		},
+		"head": {
+			"translation": [0, 18, 0]
+		},
+		"fixed": {
+			"rotation": [90, -45, 90],
+			"translation": [-0.5, -0.25, 0.25],
+			"scale": [0.8, 0.8, 0.8]
+		}
+	},
+	"groups": [
+		{
+			"name": "SawSword",
+			"origin": [8, 5, 8],
+			"color": 0,
+			"children": [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26]
+		}
+	]
+}
\ No newline at end of file
diff --git a/src/main/resources/assets/protectionengineering/models/item/engineer_shield.json b/src/main/resources/assets/protectionengineering/models/item/engineer_shield.json
new file mode 100644
index 0000000..db0d983
--- /dev/null
+++ b/src/main/resources/assets/protectionengineering/models/item/engineer_shield.json
@@ -0,0 +1,247 @@
+{
+	"format_version": "1.21.6",
+	"credit": "Made with Blockbench",
+	"texture_size": [64, 64],
+	"textures": {
+		"1": "protectionengineering:item/shield"
+	},
+	"elements": [
+		{
+			"name": "RightShieldDownUp",
+			"from": [-1, 18.5, 8.5],
+			"to": [8, 24.5, 8.502],
+			"rotation": {"angle": 0, "axis": "z", "origin": [8, 14.253, 7.7505]},
+			"faces": {
+				"north": {"uv": [9.75, 7.25, 7.5, 8.75], "texture": "#1"},
+				"south": {"uv": [9.75, 7, 7.5, 5.5], "rotation": 180, "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShield",
+			"from": [7, 8.5, 6.5],
+			"to": [9, 18.504, 8.5],
+			"rotation": {"angle": 0, "axis": "z", "origin": [8, 14.253, 7.7505]},
+			"faces": {
+				"north": {"uv": [0.5, 8.25, 0, 10.75], "texture": "#1"},
+				"east": {"uv": [8, 0.75, 10.5, 1.25], "rotation": 270, "texture": "#1"},
+				"south": {"uv": [8.5, 4, 8, 1.5], "rotation": 180, "texture": "#1"},
+				"west": {"uv": [8, 0, 10.5, 0.5], "rotation": 90, "texture": "#1"},
+				"up": {"uv": [2.75, 11, 3.25, 11.5], "rotation": 180, "texture": "#1"},
+				"down": {"uv": [2, 11, 2.5, 11.5], "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldUp",
+			"from": [9, 8.504, 7.5],
+			"to": [18, 18.504, 8.5],
+			"rotation": {"angle": 0, "axis": "z", "origin": [8, 14.253, 7.7505]},
+			"faces": {
+				"north": {"uv": [7.75, 0, 5.5, 2.5], "texture": "#1"},
+				"south": {"uv": [2.25, 8, 0, 5.5], "rotation": 180, "texture": "#1"},
+				"up": {"uv": [10, 7.5, 12.25, 7.75], "rotation": 180, "texture": "#1"},
+				"down": {"uv": [10, 7, 12.25, 7.25], "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldUp",
+			"from": [18, 8.504, 6.5],
+			"to": [19, 18.504, 8.5],
+			"rotation": {"angle": 0, "axis": "y", "origin": [8, 14.253, 7.7505]},
+			"faces": {
+				"north": {"uv": [4.25, 8.25, 4, 10.75], "texture": "#1"},
+				"east": {"uv": [0.75, 8.25, 3.25, 8.75], "rotation": 270, "texture": "#1"},
+				"south": {"uv": [3.75, 10.75, 3.5, 8.25], "rotation": 180, "texture": "#1"},
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+				"up": {"uv": [3.5, 11, 3.75, 11.5], "rotation": 180, "texture": "#1"},
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+			"rotation": {"angle": 0, "axis": "x", "origin": [8, 14.253, 7.7505]},
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+		{
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+				"down": {"uv": [0.75, 10.5, 3, 10.75], "texture": "#1"}
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+		},
+		{
+			"name": "RightShieldDown",
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+			"to": [-2, 18.504, 8.5],
+			"rotation": {"angle": 0, "axis": "z", "origin": [8, 14.253, 7.7505]},
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+				"down": {"uv": [4, 11, 4.25, 11.5], "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldDown",
+			"from": [9, 17.504, 6.5],
+			"to": [18, 18.504, 7.5],
+			"rotation": {"angle": 0, "axis": "x", "origin": [8, 14.253, 7.7505]},
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+				"down": {"uv": [10.5, 10.5, 12.75, 10.75], "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldDownDown",
+			"from": [-2, -1.492, 8],
+			"to": [8, 8.504, 8.996],
+			"rotation": {"angle": 0, "axis": "z", "origin": [8, 14.253, 7.7505]},
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+				"down": {"uv": [5.5, 9.5, 8, 9.75], "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldDownUp",
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+			"to": [18, 24.5, 8.996],
+			"rotation": {"angle": 0, "axis": "x", "origin": [8, 14.253, 7.7505]},
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+				"up": {"uv": [8.5, 11, 8.75, 11.25], "rotation": 180, "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldDownUp",
+			"from": [8, 24.5, 8],
+			"to": [18, 25.5, 8.996],
+			"rotation": {"angle": 0, "axis": "x", "origin": [8, 14.253, 7.7505]},
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+				"down": {"uv": [5.5, 10, 8, 10.25], "rotation": 180, "texture": "#1"}
+			}
+		}
+	],
+	"display": {
+		"thirdperson_righthand": {
+			"rotation": [0, -90, 0],
+			"translation": [2.5, -4.5, 3],
+			"scale": [0.8, 0.8, 0.8]
+		},
+		"thirdperson_lefthand": {
+			"rotation": [0, -90, 0],
+			"translation": [2.5, -4.5, 3],
+			"scale": [0.8, 0.8, 0.8]
+		},
+		"firstperson_righthand": {
+			"scale": [0.8, 0.8, 0.8]
+		},
+		"firstperson_lefthand": {
+			"scale": [0.8, 0.8, 0.8]
+		},
+		"ground": {
+			"translation": [0, 6, 0],
+			"scale": [0.6, 0.6, 0.6]
+		},
+		"gui": {
+			"rotation": [15, 135, 5],
+			"translation": [0, -2, 0],
+			"scale": [0.5, 0.5, 0.5]
+		},
+		"head": {
+			"scale": [0.8, 0.8, 0.8]
+		},
+		"fixed": {
+			"translation": [0, -2.25, 0.25],
+			"scale": [0.6, 0.6, 0.6]
+		}
+	},
+	"overrides": [
+		{"predicate": {"blocking": 1}, "model": "protectionengineering:item/engineer_shield_blocking"}
+	],
+	"groups": [
+		{
+			"name": "Shield",
+			"origin": [8, 9.5, 8.501],
+			"color": 0,
+			"children": [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]
+		}
+	]
+}
\ No newline at end of file
diff --git a/src/main/resources/assets/protectionengineering/models/item/engineer_shield_blocking.json b/src/main/resources/assets/protectionengineering/models/item/engineer_shield_blocking.json
new file mode 100644
index 0000000..dfd71c7
--- /dev/null
+++ b/src/main/resources/assets/protectionengineering/models/item/engineer_shield_blocking.json
@@ -0,0 +1,248 @@
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+	"textures": {
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+	},
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+			"to": [8, 24.5, 8.502],
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+		{
+			"name": "RightShield",
+			"from": [7, 8.5, 6.5],
+			"to": [9, 18.504, 8.5],
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+				"down": {"uv": [2, 11, 2.5, 11.5], "texture": "#1"}
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+				"down": {"uv": [10, 7, 12.25, 7.25], "texture": "#1"}
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+				"down": {"uv": [8.25, 10, 10.5, 10.25], "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldUpDown",
+			"from": [8, -1.492, 8],
+			"to": [18, 8.504, 8.996],
+			"rotation": {"angle": 0, "axis": "y", "origin": [8, 14.253, 7.7505]},
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+				"down": {"uv": [8, 5, 10.5, 5.25], "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldUpUp",
+			"from": [-2, 17.504, 8],
+			"to": [-1, 24.5, 8.996],
+			"rotation": {"angle": 0, "axis": "y", "origin": [8, 14.253, 7.7505]},
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+			}
+		},
+		{
+			"name": "RightShieldUpUp",
+			"from": [-2, 24.5, 8],
+			"to": [8, 25.5, 9],
+			"rotation": {"angle": 0, "axis": "y", "origin": [8, 14.253, 7.7505]},
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+				"down": {"uv": [0.75, 9, 3.25, 9.25], "rotation": 180, "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldUpUp",
+			"from": [8, 18.5, 8.5],
+			"to": [17, 24.5, 8.502],
+			"rotation": {"angle": 0, "axis": "y", "origin": [8, 14.253, 7.7505]},
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+		{
+			"name": "RightShieldDown",
+			"from": [-2, 8.504, 7.5],
+			"to": [7, 18.504, 8.5],
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+				"down": {"uv": [0.75, 10.5, 3, 10.75], "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldDown",
+			"from": [-3, 8.504, 6.5],
+			"to": [-2, 18.504, 8.5],
+			"rotation": {"angle": 0, "axis": "y", "origin": [8, 14.253, 7.7505]},
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+				"down": {"uv": [4, 11, 4.25, 11.5], "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldDown",
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+			"to": [18, 18.504, 7.5],
+			"rotation": {"angle": 0, "axis": "y", "origin": [8, 14.253, 7.7505]},
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+				"down": {"uv": [10.5, 10.5, 12.75, 10.75], "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldDownDown",
+			"from": [-2, -1.492, 8],
+			"to": [8, 8.504, 8.996],
+			"rotation": {"angle": 0, "axis": "y", "origin": [8, 14.253, 7.7505]},
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+				"down": {"uv": [5.5, 9.5, 8, 9.75], "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldDownUp",
+			"from": [17, 17.504, 8],
+			"to": [18, 24.5, 8.996],
+			"rotation": {"angle": 0, "axis": "y", "origin": [8, 14.253, 7.7505]},
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+				"up": {"uv": [8.5, 11, 8.75, 11.25], "rotation": 180, "texture": "#1"}
+			}
+		},
+		{
+			"name": "RightShieldDownUp",
+			"from": [8, 24.5, 8],
+			"to": [18, 25.5, 8.996],
+			"rotation": {"angle": 0, "axis": "y", "origin": [8, 14.253, 7.7505]},
+			"faces": {
+				"north": {"uv": [12.5, 6.25, 10, 6], "rotation": 180, "texture": "#1"},
+				"east": {"uv": [9, 11, 9.25, 11.25], "rotation": 90, "texture": "#1"},
+				"south": {"uv": [12.5, 6.5, 10, 6.75], "texture": "#1"},
+				"up": {"uv": [10, 5.5, 12.5, 5.75], "texture": "#1"},
+				"down": {"uv": [5.5, 10, 8, 10.25], "rotation": 180, "texture": "#1"}
+			}
+		}
+	],
+	"display": {
+		"thirdperson_righthand": {
+			"rotation": [15, -45, 0],
+			"translation": [0.25, -4.5, -2.5],
+			"scale": [0.8, 0.8, 0.8]
+		},
+		"thirdperson_lefthand": {
+			"rotation": [15, -45, 0],
+			"translation": [0.25, -4.5, -2.5],
+			"scale": [0.8, 0.8, 0.8]
+		},
+		"firstperson_righthand": {
+			"rotation": [0, 0, 22.5],
+			"translation": [-5, -1, 2.5],
+			"scale": [0.7, 0.7, 0.7]
+		},
+		"firstperson_lefthand": {
+			"rotation": [0, 0, 22.5],
+			"translation": [-5, -1, 2.5],
+			"scale": [0.7, 0.7, 0.7]
+		},
+		"ground": {
+			"translation": [0, 6, 0],
+			"scale": [0.6, 0.6, 0.6]
+		},
+		"gui": {
+			"rotation": [15, 135, 5],
+			"translation": [0, -2, 0],
+			"scale": [0.5, 0.5, 0.5]
+		},
+		"head": {
+			"scale": [0.8, 0.8, 0.8]
+		},
+		"fixed": {
+			"translation": [0, -2.25, 0.25],
+			"scale": [0.6, 0.6, 0.6]
+		}
+	},
+	"groups": [
+		{
+			"name": "Shield",
+			"origin": [8, 9.5, 8.501],
+			"color": 0,
+			"children": [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]
+		}
+	]
+}
\ No newline at end of file
diff --git a/src/main/resources/assets/protectionengineering/textures/item/saw_sword.png b/src/main/resources/assets/protectionengineering/textures/item/saw_sword.png
new file mode 100644
index 0000000..1cba06a
Binary files /dev/null and b/src/main/resources/assets/protectionengineering/textures/item/saw_sword.png differ
diff --git a/src/main/resources/assets/protectionengineering/textures/item/shield.png b/src/main/resources/assets/protectionengineering/textures/item/shield.png
new file mode 100644
index 0000000..c72369c
Binary files /dev/null and b/src/main/resources/assets/protectionengineering/textures/item/shield.png differ
diff --git a/src/main/resources/protectionengineering.mixins.json b/src/main/resources/protectionengineering.mixins.json
index a91adca..6cd7e78 100644
--- a/src/main/resources/protectionengineering.mixins.json
+++ b/src/main/resources/protectionengineering.mixins.json
@@ -4,7 +4,9 @@
   "compatibilityLevel": "JAVA_21",
   "mixins": [
     "LivingEntityMixin",
-    "ItemStackMixin"
+    "ItemStackMixin",
+    "PlayerShieldMixin",
+    "ShieldAngleMixin"
   ],
   "injectors": {
     "defaultRequire": 1