Socket 12 mm Drive Extra Long Hex Bit Socket

Proto Tools is an American industrial hand tool company. Founded as Plomb, it is presently a division of Stanley Black & Decker. The company is credited with creating the first combination wrench in 1933. Bit holders have a hex opening to hold the bit allowing the bit holder to take the full load of torque. Made of heat-treated alloy steel. Polished chrome finish.