OTC (5791ID-412 Club/Hand Drill Hammer - 4 lb. Head, 12" Handle Indestructible handle that never needs replacement Outlasts wood and fiberglass handle hammers by well over 30000 overstrikes Rubber grip that is reinforced with steel bars to resist breaking while absorbing impact and vibration Drop forged head is induction-hardened for long life and contains steel locking plates that are specially bonded to ensure the head never becomes loose Meets ANSI/BS876 specifications for material hardness and performance