diff --git a/src/main/java/com/hbm/handler/ToolAbility.java b/src/main/java/com/hbm/handler/ToolAbility.java
index bf9462a49..aab7757f9 100644
--- a/src/main/java/com/hbm/handler/ToolAbility.java
+++ b/src/main/java/com/hbm/handler/ToolAbility.java
@@ -33,7 +33,6 @@ import net.minecraft.world.World;
 
 public abstract class ToolAbility {
 
-	//how to potentially save this: cancel the event/operation so that ItemInWorldManager's harvest method falls short, then recreate it with a more sensible structure
 	public boolean onDig(World world, int x, int y, int z, EntityPlayer player, Block block, int meta, IItemAbility tool) { return false; }
 	public abstract String getName();
 	public abstract String getFullName();
@@ -205,6 +204,63 @@ public abstract class ToolAbility {
 		}
 	}
 
+	public static class HammerSilkAbility extends ToolAbility {
+
+		int range;
+		
+		public HammerSilkAbility(int range) {
+			this.range = range;
+		}
+		
+		@Override
+		public boolean onDig(World world, int x, int y, int z, EntityPlayer player, Block block, int meta, IItemAbility tool) {
+			if(EnchantmentHelper.getSilkTouchModifier(player) || player.getHeldItem() == null)
+				return false;
+			
+			ItemStack stack = player.getHeldItem();
+			EnchantmentUtil.addEnchantment(stack, Enchantment.silkTouch, 1);
+			
+			for(int a = x - range; a <= x + range; a++) {
+				for(int b = y - range; b <= y + range; b++) {
+					for(int c = z - range; c <= z + range; c++) {
+						
+						if(a == x && b == y && c == z)
+							continue;
+						
+						tool.breakExtraBlock(world, a, b ,c, player, x, y, z);
+					}
+				}
+			}
+			if(player instanceof EntityPlayerMP)
+				IItemAbility.standardDigPost(world, x, y, z, (EntityPlayerMP) player);
+			
+			EnchantmentUtil.removeEnchantment(stack, Enchantment.silkTouch);
+			
+			return false;
+			
+		}
+
+		@Override
+		public String getName() {
+			return "tool.ability.hammersilk";
+		}
+
+		@Override
+		public String getFullName() {
+			return I18n.format(getName()) + getExtension();
+		}
+
+		@Override
+		public String getExtension() {
+			return " (" + range + ")";
+		}
+
+		@Override
+		public boolean isAllowed() {
+			return ToolConfig.abilityHammer;
+		}
+	}
+
 	public static class SilkAbility extends ToolAbility {
 
 		@Override
diff --git a/src/main/java/com/hbm/inventory/gui/GUIScreenToolAbility.java b/src/main/java/com/hbm/inventory/gui/GUIScreenToolAbility.java
new file mode 100644
index 000000000..7980f72a5
--- /dev/null
+++ b/src/main/java/com/hbm/inventory/gui/GUIScreenToolAbility.java
@@ -0,0 +1,339 @@
+package com.hbm.inventory.gui;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.lwjgl.input.Keyboard;
+import org.lwjgl.input.Mouse;
+import org.lwjgl.opengl.GL11;
+
+import com.hbm.items.ModItems;
+import com.hbm.items.special.ItemHolotapeImage.EnumHoloImage;
+import com.hbm.items.tool.ItemToolAbility;
+import com.hbm.lib.RefStrings;
+import com.hbm.util.EnumUtil;
+import com.hbm.util.I18nUtil;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.audio.PositionedSoundRecord;
+import net.minecraft.client.gui.GuiScreen;
+import net.minecraft.client.renderer.OpenGlHelper;
+import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemStack;
+import net.minecraft.item.ItemTool;
+import net.minecraft.util.ResourceLocation;
+
+public class GUIScreenToolAbility extends GuiScreen {
+
+	public static ResourceLocation texture = new ResourceLocation(RefStrings.MODID + ":textures/gui/tool/gui_tool_ability.png");
+	
+	protected int guiLeft;
+	protected int guiTop;
+	protected int xSize;
+	protected int ySize;
+	protected int insetWidth;
+
+	protected ItemToolAbility toolDef;
+	protected ItemStack toolStack;
+
+	// TODO: Move elsewhere?
+	public static class AbilityInfo {
+		String name;
+		int textureU, textureV;
+		boolean hasLevels;
+
+		public AbilityInfo(String name, int textureU, int textureV, boolean hasLevels) {
+			this.name = name;
+			this.textureU = textureU;
+			this.textureV = textureV;
+			this.hasLevels = hasLevels;
+		}
+	}
+
+	public static final List<AbilityInfo> abilitiesArea = new ArrayList<>();
+	public static final List<AbilityInfo> abilitiesHarvest = new ArrayList<>();
+
+	static {
+		abilitiesArea.add(new AbilityInfo(null, 0, 76, false));
+		abilitiesArea.add(new AbilityInfo("tool.ability.recursion", 32, 76, false));
+		abilitiesArea.add(new AbilityInfo("tool.ability.hammer", 64, 76, true));
+		abilitiesArea.add(new AbilityInfo("tool.ability.explosion", 96, 76, true));
+	
+		abilitiesHarvest.add(new AbilityInfo(null, 0, 92, false));
+		abilitiesHarvest.add(new AbilityInfo("tool.ability.silktouch", 32, 92, false));
+		abilitiesHarvest.add(new AbilityInfo("tool.ability.luck", 64, 92, false));
+		abilitiesHarvest.add(new AbilityInfo("tool.ability.smelter", 96, 92, false));
+		abilitiesHarvest.add(new AbilityInfo("tool.ability.shredder", 128, 92, false));
+		abilitiesHarvest.add(new AbilityInfo("tool.ability.centrifuge", 160, 92, false));
+		abilitiesHarvest.add(new AbilityInfo("tool.ability.crystallizer", 192, 92, false));
+		abilitiesHarvest.add(new AbilityInfo("tool.ability.mercury", 224, 92, false));
+	}
+
+	// TODO: availability status for abilities; list of presets; selected preset index;
+	// TODO: Remove this in favor of current preset
+	int selectionIdxArea = 0;
+	int selectedLevelArea = 0;
+	int selectionIdxHarvest = 0;
+	int selectedLevelHarvest = 0;
+	int selectedPreset = 0;
+	int totalPresets = 1;
+	
+	public GUIScreenToolAbility(ItemToolAbility toolDef) {
+		super();
+		
+		this.toolDef = toolDef;
+		this.xSize = 186;  // Note: increased dynamically
+		this.ySize = 76;
+
+		this.insetWidth = 20 * Math.max(abilitiesArea.size() - 4, abilitiesHarvest.size() - 8);
+		this.xSize += insetWidth;
+	}
+
+	@Override
+	public void initGui() {
+		this.toolStack = this.mc.thePlayer.getHeldItem();
+		
+		if(this.toolStack == null) {
+			doClose();
+		}
+		
+		guiLeft = (width - xSize) / 2;
+		guiTop = (height - ySize) / 2;
+	}
+
+	@Override
+	public void drawScreen(int mouseX, int mouseY, float f) {
+		this.drawDefaultBackground();
+
+		drawGuiContainerBackgroundLayer(mouseX, mouseY);
+
+		if(!Mouse.isButtonDown(0) && !Mouse.isButtonDown(1) && Mouse.next()) {
+			int scroll = Mouse.getEventDWheel() / 6;
+			
+			// TODO
+			selectedPreset = (selectedPreset + totalPresets + scroll) % totalPresets;
+		}
+	}
+
+	protected void drawGuiContainerBackgroundLayer(int mouseX, int mouseY) {
+		GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
+		Minecraft.getMinecraft().getTextureManager().bindTexture(texture);
+
+		// Draw window background
+		drawTexturedModalRect(guiLeft, guiTop, 0, 0, 100, ySize);
+		for (int i = 0; i < insetWidth; i += 20) {
+			drawTexturedModalRect(guiLeft + 100 + i, guiTop, 80, 0, 20, ySize);
+		}
+		drawTexturedModalRect(guiLeft + 100 + insetWidth, guiTop, 100, 0, xSize - insetWidth - 100, ySize);
+
+		// Draw the switches
+		drawSwitches(abilitiesArea, selectionIdxArea, selectedLevelArea, guiLeft + 15, guiTop + 25, mouseX, mouseY);
+		drawSwitches(abilitiesHarvest, selectionIdxHarvest, selectedLevelHarvest, guiLeft + 15, guiTop + 45, mouseX, mouseY);
+
+		// Draw preset indicator
+		drawNumber(selectedPreset + 1, guiLeft + insetWidth + 115, guiTop + 25);
+		drawNumber(totalPresets, guiLeft + insetWidth + 149, guiTop + 25);
+
+		// Draw extra buttons hover highlights
+		int extraBtnsX = guiLeft + xSize - 75;
+
+		for (int i = 0; i < 6; ++i) {
+			if (isInAABB(mouseX, mouseY, extraBtnsX + i * 11, guiTop + 11, 9, 9)) {
+				drawTexturedModalRect(extraBtnsX + i * 11, guiTop + 11, 186 + i * 9, 18, 9, 9);
+			}
+		}
+	}
+
+	protected void drawSwitches(List<AbilityInfo> abilities, int selectionIdx, int selectedLevel, int x, int y, int mouseX, int mouseY) {
+		for (int i = 0; i < abilities.size(); ++i) {
+			AbilityInfo abilityInfo = abilities.get(i);
+			boolean available = true;  // TODO
+
+			// Draw switch
+			drawTexturedModalRect(x + 20 * i, y, abilityInfo.textureU + (available ? 16 : 0), abilityInfo.textureV, 16, 16);
+		
+			// Draw level LEDs
+			if (abilityInfo.hasLevels) {
+				int level = 0;  // TODO
+
+				if (i == selectionIdx) {
+					level = selectedLevel + 1;
+				}
+
+				drawTexturedModalRect(x + 20 * i + 17, y + 1, 222 + level * 2, 0, 2, 14);
+			}
+
+			if (i == selectionIdx) {
+				// Draw selection highlight
+				drawTexturedModalRect(x + 20 * i - 1, y - 1, 186, 0, 18, 18);
+			} else if (available && isInAABB(mouseX, mouseY, x + 20 * i, y, 16, 16)) {
+				// Draw hover highlight
+				drawTexturedModalRect(x + 20 * i - 1, y - 1, 204, 0, 18, 18);
+			}
+		}
+	}
+
+	protected void drawNumber(int number, int x, int y) {
+		number += 100;  // Against accidental negatives
+		drawDigit((number / 10) % 10, x, y);
+		drawDigit(number % 10, x + 12, y);
+	}
+
+	protected void drawDigit(int digit, int x, int y) {
+		drawTexturedModalRect(x, y, digit * 10, 108, 10, 15);
+	}
+
+	private boolean isInAABB(int mouseX, int mouseY, int x, int y, int width, int height) {
+		return x <= mouseX && x + width > mouseX && y <= mouseY && y + height > mouseY;
+	}
+
+	@Override
+	public void updateScreen() {
+		EntityPlayer player = this.mc.thePlayer;
+
+		if(player.getHeldItem() == null || player.getHeldItem().getItem() != toolDef)
+			player.closeScreen();
+	}
+
+	@Override
+	protected void mouseClicked(int mouseX, int mouseY, int button) {
+		// TODO
+		boolean clicked = false;
+		
+		// TODO: Encapsulate?
+		for (int i = 0; i < abilitiesArea.size(); ++i) {
+			AbilityInfo abilityInfo = abilitiesArea.get(i);
+			boolean available = true;  // TODO
+
+			if (available && isInAABB(mouseX, mouseY, guiLeft + 15 + 20 * i, guiTop + 25, 16, 16)) {
+				if (abilityInfo.hasLevels) {
+					int availableLevels = 5;
+
+					if (i == selectionIdxArea) {
+						selectedLevelArea = (selectedLevelArea + 1) % availableLevels;
+					} else {
+						selectedLevelArea = 0;
+					}
+				}
+
+				selectionIdxArea = i;
+				clicked = true;
+				break;
+			}
+		}
+
+		for (int i = 0; i < abilitiesHarvest.size(); ++i) {
+			AbilityInfo abilityInfo = abilitiesHarvest.get(i);
+			boolean available = true;  // TODO
+
+			if (available && isInAABB(mouseX, mouseY, guiLeft + 15 + 20 * i, guiTop + 45, 16, 16)) {
+				if (abilityInfo.hasLevels) {
+					int availableLevels = 5;
+
+					if (i == selectionIdxArea) {
+						selectedLevelHarvest = (selectedLevelHarvest + 1) % availableLevels;
+					} else {
+						selectedLevelHarvest = 0;
+					}
+				}
+
+				selectionIdxHarvest = i;
+				clicked = true;
+				break;
+			}
+		}
+
+		if (clicked) {
+			mc.getSoundHandler().playSound(PositionedSoundRecord.func_147674_a(new ResourceLocation("hbm:item.techBoop"), 1F));
+		}
+		
+		// TODO
+		int extraBtnsX = guiLeft + xSize - 75;
+
+		clicked = false;
+
+		if (isInAABB(mouseX, mouseY, extraBtnsX + 0 * 11, guiTop + 11, 9, 9)) {
+			doDelPreset();
+			clicked = true;
+		}
+
+		if (isInAABB(mouseX, mouseY, extraBtnsX + 1 * 11, guiTop + 11, 9, 9)) {
+			doAddPreset();
+			clicked = true;
+		}
+
+		if (isInAABB(mouseX, mouseY, extraBtnsX + 2 * 11, guiTop + 11, 9, 9)) {
+			doZeroPreset();
+			clicked = true;
+		}
+
+		if (isInAABB(mouseX, mouseY, extraBtnsX + 3 * 11, guiTop + 11, 9, 9)) {
+			doNextPreset();
+			clicked = true;
+		}
+
+		if (isInAABB(mouseX, mouseY, extraBtnsX + 4 * 11, guiTop + 11, 9, 9)) {
+			doPrevPreset();
+			clicked = true;
+		}
+
+		if (isInAABB(mouseX, mouseY, extraBtnsX + 5 * 11, guiTop + 11, 9, 9)) {
+			doClose();
+			clicked = true;
+		}
+
+		if (clicked) {
+			mc.getSoundHandler().playSound(PositionedSoundRecord.func_147674_a(new ResourceLocation("gui.button.press"), 0.5F));
+		}
+	}
+
+	@Override
+	protected void keyTyped(char c, int key) {
+		if(key == 1 || key == this.mc.gameSettings.keyBindInventory.getKeyCode()) {
+			doClose();
+			return;
+		}
+		
+		super.keyTyped(c, key);
+	}
+	
+	@Override
+	public boolean doesGuiPauseGame() {
+		return false;
+	}
+
+	protected void doDelPreset() {
+		// TODO
+		if (totalPresets <= 1) {
+			return;
+		}
+		totalPresets -= 1;
+		selectedPreset -= 1;
+	}
+
+	protected void doAddPreset() {
+		// TODO
+		totalPresets += 1;
+		selectedPreset += 1;
+	}
+
+	protected void doZeroPreset() {
+		// TODO
+		selectedPreset = 0;
+	}
+
+	protected void doNextPreset() {
+		// TODO
+		selectedPreset = (selectedPreset + 1) % totalPresets;
+	}
+
+	protected void doPrevPreset() {
+		// TODO
+		selectedPreset = (selectedPreset + totalPresets - 1) % totalPresets;
+	}
+
+	protected void doClose() {
+		this.mc.thePlayer.closeScreen();
+	}
+}
\ No newline at end of file
diff --git a/src/main/java/com/hbm/items/tool/ItemToolAbility.java b/src/main/java/com/hbm/items/tool/ItemToolAbility.java
index 99ce2d356..e0c8fd8a4 100644
--- a/src/main/java/com/hbm/items/tool/ItemToolAbility.java
+++ b/src/main/java/com/hbm/items/tool/ItemToolAbility.java
@@ -9,11 +9,15 @@ import java.util.Set;
 import com.google.common.collect.HashMultimap;
 import com.google.common.collect.Multimap;
 import com.google.common.collect.Sets;
+import com.hbm.inventory.gui.GUIScreenToolAbility;
+import com.hbm.handler.HbmKeybinds;
+import com.hbm.extprop.HbmPlayerProps;
 import com.hbm.handler.ToolAbility;
 import com.hbm.handler.ToolAbility.*;
 import com.hbm.main.MainRegistry;
 import com.hbm.packet.PacketDispatcher;
 import com.hbm.packet.toclient.PlayerInformPacket;
+import com.hbm.tileentity.IGUIProvider;
 import com.hbm.util.ChatBuilder;
 import com.hbm.handler.WeaponAbility;
 
@@ -28,6 +32,7 @@ import net.minecraft.entity.ai.attributes.AttributeModifier;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.entity.player.EntityPlayerMP;
 import net.minecraft.init.Blocks;
+import net.minecraft.inventory.Container;
 import net.minecraft.item.EnumRarity;
 import net.minecraft.item.ItemStack;
 import net.minecraft.item.ItemTool;
@@ -35,7 +40,7 @@ import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.util.EnumChatFormatting;
 import net.minecraft.world.World;
 
-public class ItemToolAbility extends ItemTool implements IItemAbility, IDepthRockTool {
+public class ItemToolAbility extends ItemTool implements IItemAbility, IDepthRockTool, IGUIProvider {
 	
 	protected boolean isShears = false;
 	protected EnumToolType toolType;
@@ -228,7 +233,15 @@ public class ItemToolAbility extends ItemTool implements IItemAbility, IDepthRoc
 
 	public ItemStack onItemRightClick(ItemStack stack, World world, EntityPlayer player) {
 		
-		if(world.isRemote || this.breakAbility.size() < 2 || !canOperate(stack))
+		if(this.breakAbility.size() < 2 || !canOperate(stack))
+			return super.onItemRightClick(stack, world, player);
+
+		if(HbmPlayerProps.getData(player).getKeyPressed(HbmKeybinds.EnumKeybind.TOOL_ALT)) {
+			if(world.isRemote) player.openGui(MainRegistry.instance, 0, world, 0, 0, 0);
+			return stack;
+		}
+
+		if(world.isRemote)
 			return super.onItemRightClick(stack, world, player);
 
 		int i = getAbility(stack);
@@ -300,4 +313,15 @@ public class ItemToolAbility extends ItemTool implements IItemAbility, IDepthRoc
 	public boolean isShears(ItemStack stack) {
 		return this.isShears;
 	}
+
+	@Override
+	public Container provideContainer(int ID, EntityPlayer player, World world, int x, int y, int z) {
+		return null;
+	}
+
+	@Override
+	@SideOnly(Side.CLIENT)
+	public Object provideGUI(int ID, EntityPlayer player, World world, int x, int y, int z) {
+		return new GUIScreenToolAbility(this);
+	}
 }
diff --git a/src/main/resources/assets/hbm/textures/gui/tool/gui_tool_ability.png b/src/main/resources/assets/hbm/textures/gui/tool/gui_tool_ability.png
new file mode 100644
index 000000000..5e53a867d
Binary files /dev/null and b/src/main/resources/assets/hbm/textures/gui/tool/gui_tool_ability.png differ