Wrench

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. Satin finish provides corrosion resistance and a slip resistant grip Sliding jaw moves easily along the shank and is designed to be self-locking on to the nut Precision machined pins provide engagement with holes on the sides of collars and nuts