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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.
In 1926, Plumb objected to an attempt by the similarly named Plomb Tool Company to register its name as a trademark. The companies negotiated an agreement, but in 1946, Plumb sued for trademark infringement because Plomb had violated the terms of this agreement. [1] The Plomb company began selling tools under the Proto name instead. [4]
It made automotive tools, such as wrenches and sockets, [1] and a number of specialty tools. [2] Blackhawk introduced a number of innovations to conventional drive tools, such as the "Lock-On" system of locking sockets, [3] gearless ratchets, [4] [5] telescoping ratchet handles, [6] and 7/16" drive tools. [7]
Its closest cousin among common, modern tools, is the combination square, which shares with the Odd Job the functions of scribing, squaring, level/plumb, and the sliding and locking ruler [2] (originally a 12 inch wooden ruler with a built-in trammel point was included with units bundled with a ruler, [3] but this was often changed and many are ...
In 1980, Mac Tools was bought by the Stanley Works, and is now part of a group of brands including Stanley Tools, Proto, Facom, and Blackhawk a subsidiary of Proto Tools. [citation needed] In 1990, Mac Tools set up in the United Kingdom, and in 2009, it changed its presence in the United Kingdom from being a distribution to a franchise system. [3]
Sidchrome was acquired by Stanley Tools in 1991. [ 1 ] [ 2 ] Sidchrome closed the Australian factory and ended all local manufacturing. In 1996 Stanley Black & Decker started to move all tool manufacturing to Taiwan, whilst sourcing various items from Proto in the USA (marked as Proto on items) due to supply of left-over Australian-made tools ...