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Socket set with ratchet (above), four hex sockets and a universal joint. A socket wrench (or socket spanner) is a type of spanner (or wrench [1] in North American English) that uses a closed socket format, rather than a typical open wrench/spanner to turn a fastener, typically in the form of a nut or bolt.
A ratchet (occasionally spelled rachet) is a mechanical device that allows continuous linear or rotary motion in only one direction while preventing motion in the opposite direction. Ratchets are widely used in machinery and tools. The word ratchet is also used informally to refer to a ratcheting socket wrench.
Blackhawk also partnered with the Armstrong Bros. Tool Company in the late 1920s through the late 1940s to produce a range of open-ended wrenches under the "Blackhawk–Armstrong" label. [9] Blackhawk also produced Blackhawk Jack brand floor jacks under the Blackhawk Mfg. Co. name including a handy 1-1/2 Ton heavy steel wheeled model. [10]
This ratchet was a very successful design, lasting from its introduction in 1961 to the eventual closure of New Britain in the 1980s. The ratchet was a compression engagement, using 12 teeth with a 60 tooth ratchet count. Later ratchets, from 1971 and onward, used a 9 tooth pawl making the ratchet a 45 tooth count.
The Mac Tools line consists of over 8,000 professional tools, including screwdrivers, ratchets, wrenches, and assorted air tools. Mac Tools also produces its own line of tool storage and carts at its manufacturing plant located in Allentown, Pennsylvania. Mac Tools manufactured tools are produced in various Stanley Black & Decker facilities ...
North Bros. key acquisition was the hiring of Zachary Furbish when it purchased the Forest City Screwdriver Co in 1897. He brought with him patents related to a spiral ratchet screw driver and considerable experience in tool design. This was their foothold into the tool manufacturing industry which would later become the core of their business.