diff --git a/src/constants/java/net/fabricmc/yarn/constants/MiningLevels.java b/src/constants/java/net/fabricmc/yarn/constants/MiningLevels.java
new file mode 100644
index 0000000000..8643fd9d54
--- /dev/null
+++ b/src/constants/java/net/fabricmc/yarn/constants/MiningLevels.java
@@ -0,0 +1,50 @@
+/*
+ * This file is free for everyone to use under the Creative Commons Zero license.
+ */
+
+package net.fabricmc.yarn.constants;
+
+/**
+ * Constants of Mining Levels.
+ * <p>Mining levels are used by blocks to determine the strength of the tools required to successfully harvest them.
+ * <br>All tool materials have an assigned mining level. If a tool's mining level is equal to or greater than the block's,
+ * the tool will apply its efficiency bonus and the block will drop its loot table.
+ * <p>Blocks without mining levels, or items that aren't tools, use {@link MiningLevels#HAND}.
+ * @see net.minecraft.item.ToolMaterial#getMiningLevel() ToolMaterial#getMiningLevel
+ */
+public final class MiningLevels {
+	/**
+	 * Blocks with this level do not require a tool to harvest.
+	 * <br>This is the default level for blocks and items.
+	 */
+	public static final int HAND = -1;
+
+	/**
+	 * Blocks with this level require a Wooden tool or better to harvest.
+	 * <br>In addition to Wooden Tools, Golden Tools also use this level.
+	 */
+	public static final int WOOD = 0;
+
+	/**
+	 * Blocks with this level require a Stone tool or better to harvest.
+	 */
+	public static final int STONE = 1;
+
+	/**
+	 * Blocks with this level require an Iron tool or better to harvest.
+	 */
+	public static final int IRON = 2;
+
+	/**
+	 * Blocks with this level require a Diamond tool or better to harvest.
+	 */
+	public static final int DIAMOND = 3;
+
+	/**
+	 * Blocks with this level require a Netherite tool or better to harvest.
+	 */
+	public static final int NETHERITE = 4;
+
+	private MiningLevels() {
+	}
+}
diff --git a/unpick-definitions/mining_levels.unpick b/unpick-definitions/mining_levels.unpick
new file mode 100644
index 0000000000..21565bd871
--- /dev/null
+++ b/unpick-definitions/mining_levels.unpick
@@ -0,0 +1,13 @@
+v2
+
+constant mining_levels net/fabricmc/yarn/constants/MiningLevels HAND
+constant mining_levels net/fabricmc/yarn/constants/MiningLevels WOOD
+constant mining_levels net/fabricmc/yarn/constants/MiningLevels STONE
+constant mining_levels net/fabricmc/yarn/constants/MiningLevels IRON
+constant mining_levels net/fabricmc/yarn/constants/MiningLevels DIAMOND
+constant mining_levels net/fabricmc/yarn/constants/MiningLevels NETHERITE
+
+target_method net/minecraft/item/ToolMaterials <init> (Ljava/lang/String;IIIFFILjava/util/function/Supplier;)V
+	param 2 mining_levels
+target_method net/minecraft/item/ToolMaterial getMiningLevel ()I
+    return mining_levels
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