diff --git a/src/main/java/tconstruct/library/tools/AbilityHelper.java b/src/main/java/tconstruct/library/tools/AbilityHelper.java
index e09efd91..dc4f7b4e 100644
--- a/src/main/java/tconstruct/library/tools/AbilityHelper.java
+++ b/src/main/java/tconstruct/library/tools/AbilityHelper.java
@@ -521,8 +521,7 @@ public class AbilityHelper
 
             if (event.getResult() == Result.ALLOW)
             {
-                stack.damageItem(1, player);
-                //damageTool(stack, 1, player, false);
+                damageTool(stack, 1, player, false);
                 return true;
             }
 
@@ -540,8 +539,7 @@ public class AbilityHelper
                 else
                 {
                     world.setBlock(x, y, z, block1);
-                    stack.damageItem(1, player);
-                    //damageTool(stack, 1, player, false);
+                    damageTool(stack, 1, player, false);
                     return true;
                 }
             }
diff --git a/src/main/java/tconstruct/library/tools/ToolCore.java b/src/main/java/tconstruct/library/tools/ToolCore.java
index 0d5b7fcf..e6b5d200 100644
--- a/src/main/java/tconstruct/library/tools/ToolCore.java
+++ b/src/main/java/tconstruct/library/tools/ToolCore.java
@@ -757,14 +757,15 @@ public abstract class ToolCore extends Item implements IEnergyContainerItem, IMo
         }
         int dur = tags.getCompoundTag("InfiTool").getInteger("Damage");
         int max = tags.getCompoundTag("InfiTool").getInteger("TotalDurability");
-        int damage = (dur*100)/max;
+        int damage = 0;
+        if(max > 0)
+            damage = (dur*100)/max;
 
+        // rounding.
         if(damage == 0 && dur > 0)
             return 1;
-        if(max > 0)
-            return damage;
-        else
-            return 0;
+
+        return damage;
     }
 
     @Override