diff --git a/src/main/java/de/ellpeck/actuallyadditions/mod/ActuallyAdditions.java b/src/main/java/de/ellpeck/actuallyadditions/mod/ActuallyAdditions.java
index 013e99a82..71818d859 100644
--- a/src/main/java/de/ellpeck/actuallyadditions/mod/ActuallyAdditions.java
+++ b/src/main/java/de/ellpeck/actuallyadditions/mod/ActuallyAdditions.java
@@ -57,6 +57,7 @@ import net.minecraftforge.fml.common.Mod.EventHandler;
 import net.minecraftforge.fml.common.Mod.Instance;
 import net.minecraftforge.fml.common.SidedProxy;
 import net.minecraftforge.fml.common.event.*;
+import lib.mcjty.varia.WrenchChecker;
 
 //                                                                           So that BuildCraft Oil always gets used
 @Mod(modid = ModUtil.MOD_ID, name = ModUtil.NAME, version = ModUtil.VERSION, dependencies = "after:BuildCraft|Energy", guiFactory = "de.ellpeck.actuallyadditions.mod.config.GuiFactory")
@@ -105,6 +106,8 @@ public class ActuallyAdditions{
         new UpdateChecker();
         proxy.preInit(event);
 
+        WrenchChecker.init();
+
         ModUtil.LOGGER.info("PreInitialization Finished.");
     }
 
diff --git a/src/main/java/de/ellpeck/actuallyadditions/mod/blocks/BlockLaserRelay.java b/src/main/java/de/ellpeck/actuallyadditions/mod/blocks/BlockLaserRelay.java
index 2f15eff7f..4fa5abbe4 100644
--- a/src/main/java/de/ellpeck/actuallyadditions/mod/blocks/BlockLaserRelay.java
+++ b/src/main/java/de/ellpeck/actuallyadditions/mod/blocks/BlockLaserRelay.java
@@ -28,6 +28,7 @@ import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.ScaledResolution;
 import net.minecraft.entity.EntityLivingBase;
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.Item;
 import net.minecraft.item.EnumRarity;
 import net.minecraft.item.ItemCompass;
 import net.minecraft.item.ItemStack;
@@ -48,6 +49,7 @@ import net.minecraftforge.fml.common.eventhandler.Event;
 import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
 import net.minecraftforge.fml.relauncher.Side;
 import net.minecraftforge.fml.relauncher.SideOnly;
+import lib.mcjty.varia.WrenchChecker;
 
 public class BlockLaserRelay extends BlockContainerBase implements IHudDisplay{
 
@@ -163,7 +165,8 @@ public class BlockLaserRelay extends BlockContainerBase implements IHudDisplay{
         if(tile instanceof TileEntityLaserRelay){
             TileEntityLaserRelay relay = (TileEntityLaserRelay)tile;
 
-            if(StackUtil.isValid(stack) && stack.getItem() instanceof ItemCompass){
+            Item item = stack.getItem();
+            if(StackUtil.isValid(stack) && (item instanceof ItemCompass || WrenchChecker.isAWrench(item))){
                 if(!world.isRemote){
                     relay.onCompassAction(player);
 
@@ -210,8 +213,9 @@ public class BlockLaserRelay extends BlockContainerBase implements IHudDisplay{
     @SideOnly(Side.CLIENT)
     public void displayHud(Minecraft minecraft, EntityPlayer player, ItemStack stack, RayTraceResult posHit, ScaledResolution resolution){
         if(posHit != null && posHit.getBlockPos() != null && minecraft.world != null && StackUtil.isValid(stack)){
-            boolean compass = stack.getItem() instanceof ItemCompass;
-            if(compass || stack.getItem() instanceof ItemLaserWrench){
+            Item item = stack.getItem();
+            boolean compass = (item instanceof ItemCompass || WrenchChecker.isAWrench(item));
+            if(compass || item instanceof ItemLaserWrench){
                 TileEntity tile = minecraft.world.getTileEntity(posHit.getBlockPos());
                 if(tile instanceof TileEntityLaserRelay){
                     TileEntityLaserRelay relay = (TileEntityLaserRelay)tile;
@@ -224,7 +228,7 @@ public class BlockLaserRelay extends BlockContainerBase implements IHudDisplay{
                         expl = relay.getCompassDisplayString();
                     }
                     else{
-                        expl = TextFormatting.GRAY.toString()+TextFormatting.ITALIC+"Hold a Compass to modify!";
+                        expl = TextFormatting.GRAY.toString()+TextFormatting.ITALIC+"Hold a Compass or wrench to modify!";
                     }
 
                     StringUtil.drawSplitString(minecraft.fontRendererObj, expl, resolution.getScaledWidth()/2+5, resolution.getScaledHeight()/2+15, Integer.MAX_VALUE, StringUtil.DECIMAL_COLOR_WHITE, true);
diff --git a/src/main/java/lib/mcjty/varia/WrenchChecker.java b/src/main/java/lib/mcjty/varia/WrenchChecker.java
new file mode 100644
index 000000000..4b637dab1
--- /dev/null
+++ b/src/main/java/lib/mcjty/varia/WrenchChecker.java
@@ -0,0 +1,56 @@
+package lib.mcjty.varia;
+
+import net.minecraft.item.Item;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class WrenchChecker {
+
+    private static List<Class> wrenchClasses=new ArrayList<Class>();
+
+    public static void init() {
+        for (String className : new String[] {
+                /*
+                 * Can add or remove class names here
+                 * Use API interface names where possible, in case of refactoring
+                 * note that many mods implement BC wrench API iff BC is installed
+                 * and include no wrench API of their own - we use implementation
+                 * classes here to catch these cases.
+                */
+                "buildcraft.api.tools.IToolWrench",             //Buildcraft
+                "resonant.core.content.ItemScrewdriver",        //Resonant Induction
+                "ic2.core.item.tool.ItemToolWrench",            //IC2
+                "ic2.core.item.tool.ItemToolWrenchElectric",    //IC2 (more)
+                "mrtjp.projectred.api.IScrewdriver",            //Project Red
+                "mods.railcraft.api.core.items.IToolCrowbar",   //Railcraft
+                "com.bluepowermod.items.ItemScrewdriver",       //BluePower
+                "cofh.api.item.IToolHammer",                    //Thermal Expansion and compatible
+                "thermalexpansion.item.tool.ItemWrench",
+                "appeng.items.tools.quartz.ToolQuartzWrench",   //Applied Energistics
+                "crazypants.enderio.api.tool.ITool",            //Ender IO
+                "mekanism.api.IMekWrench",                      //Mekanism
+                "mcjty.rftools.items.smartwrench",              //RFTools
+                "pneumaticCraft.common.item.ItemPneumaticWrench",
+                "powercrystals.minefactoryreloaded.api.IToolHammer"
+
+        }) {
+            try {
+                wrenchClasses.add(Class.forName(className));
+                de.ellpeck.actuallyadditions.mod.util.ModUtil.LOGGER.info("Found wrench class " + className);
+            } catch (ClassNotFoundException e) {
+                // Logging.log("Failed to load wrench class " + className + " (this is not an error)");
+            }
+        }
+    }
+
+    public static boolean isAWrench(Item item) {
+        for (Class c : wrenchClasses) {
+            if (c.isAssignableFrom(item.getClass())) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+}