Proto (tools)

Stanley Proto—more commonly known simply as Proto and historically known as Plomb—is an American industrial hand tool company. It is a division of Stanley Black & Decker. The company is credited with creating the first combination wrench.

Proto (tools)

Stanley Proto—more commonly known simply as Proto and historically known as Plomb—is an American industrial hand tool company. It is a division of Stanley Black & Decker. The company is credited with creating the first combination wrench.