diff --git a/tools.lua b/tools.lua
index 11e81b3..b50a593 100644
--- a/tools.lua
+++ b/tools.lua
@@ -70,6 +70,11 @@ minetest.register_tool("industrialtest:drill",
         },
         damage_groups = {cracky=3,crubmly=3,fleshy=3},
     },
+	after_use = 
+	{
+		meta:set_int("industrialtest.powerAmount", math.max(meta:get_int("industrialtest.powerAmount") - 80,0))
+		industrialtest.api.updateItemPowerText(itemstack)
+	}
 })
 
 minetest.register_tool("industrialtest:drill_diamond",
@@ -98,6 +103,12 @@ minetest.register_tool("industrialtest:drill_diamond",
         },
         damage_groups = {cracky=3,crubmly=3,fleshy=3},
     },
+	
+	after_use = 
+	{
+		meta:set_int("industrialtest.powerAmount", math.max(meta:get_int("industrialtest.powerAmount") - 80,0))
+		industrialtest.api.updateItemPowerText(itemstack)
+	}
 })
 
 if industrialtest.mtgAvailable then