Sealey IS3812 Impact Socket 12mm 3/8"Sq Drive Chrome Vanadium, 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 Vanadium, drop-forged, WallDrive© impact socket Phosphate finish for greater corrosion resistance Ideal for use with air impact wrenches Lifetime guarantee* Model No IS3812
