Sealey IS3436 Impact Socket 36mm 3/4"Sq Drive Chrome Molybdenum, drop-forged, WallDrive© impact socket. Hardened and tempered for added strength, with phosphate finish for greater corrosion resistance. Ideal for use with air impact wrenches. Chrome Molybdenum, drop-forged, WallDrive© impact socket Phosphate finish for greater corrosion resistance Ideal for use with air impact wrenches Lifetime guarantee* Model No IS3436