CLAMP

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. Designed for heavy service applications where the strength of the extra heavy service C-clamp is not required Clamps have a high-strength steel frame with a hardened forcing screw Forcing screws are fitted with impact resistant pads