Proto (tools)

Proto
Company typeSubsidiary
IndustryManufacturing
FoundedLos Angeles, California, United States (1907 (1907))
Founder
  • Alphonse Plomb
  • Jacob Weninger
  • Charles Williams
Headquarters,
United States
ProductsIndustrial tools
ParentStanley Black & Decker
Websiteprotoindustrial.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.