Website. protoindustrial.com. Proto Tools (formally Stanley Proto) 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.
Is proto a good brand?
Proto has become one of my favorite industrial tool brands. Their new spline ratcheting wrenches are great, their Duratek screwdrivers are awesome, and their ratchets are both consistently good and affordable. ... Not all of their tools are made in the USA, but most are.Jun 9, 2014