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2. Knockout punch - Wikipedia

   en.wikipedia.org/wiki/Knockout_punch

   In metalworking, a knockout punch, also known as a chassis punch, panel punch, Greenlee punch, or a Q-max, [1] is a hand tool used to punch a hole through sheet metal. It is a very simple tool that consists of a punch, die, and screw. There are three different drive systems: manual, ratchet, and hydraulic. [2]

3. Greenlee - Wikipedia

   en.wikipedia.org/wiki/Greenlee

   Greenlee is an American industrial and electrical tool company headquartered in Rockford, Illinois.It was founded in 1862 by twin brothers Robert L. and Ralph S. Greenlee to manufacture their invention called a hollow chisel mortiser, consisting of a drill surrounded by four chisel blades used in making mortises (the hole) for mortise and tenon joints, for the furniture industry in Rockford. [1]

4. North Brothers Manufacturing Company - Wikipedia

   en.wikipedia.org/wiki/North_Brothers...

   Originally focusing on spiral ratchet and "plain" screwdrivers they soon expanded to various types of hand tools and eventually became a significant force in the tool industry. Eventually the success of the Yankee line of tools led the Stanley Works tool company to acquire the North Bros. in 1946, chiefly to improve their own product lines.

5. Easco Hand Tools - Wikipedia

   en.wikipedia.org/wiki/Easco_Hand_Tools

   This acquisition made the tools division the largest part of Danaher. [5] In 1991, Sears selected Danaher to be the exclusive supplier of Craftsman mechanic's tools. [6] In 2010, Danaher merged its tools division with Cooper Tools to form Apex Tool Group. In 2013, Apex closed the Gastonia, North Carolina plant where Easco manufactured sockets ...

6. New Britain Machine Company - Wikipedia

   en.wikipedia.org/wiki/New_Britain_Machine_Company

   This design can be said to be the next evolution of the ratchet design of SK Hand Tools' Theodore Rueb. [2] 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 ...

7. Apex Tool Group - Wikipedia

   en.wikipedia.org/wiki/Apex_Tool_Group

   K-D Tools – mechanic's hand and specialty tools; K&F – files and rasps; Kahnetics – Dispensing systems. Lufkin – Manufactures measuring tools such as calipers, gauges, micrometers, and measuring tapes. Lufkin was Cooper's first hand tool acquisition in 1967. Mayle – Mechanic's hand tools; Nicholson – Produces files, rasps, and saws ...