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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. Hydraulic torque wrench - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_torque_wrench

   A hydraulic torque wrench is significantly quieter, lighter weight and more accurate than pneumatic impact wrenches capable of similar torque output, making it an appealing alternative for many users to the very loud and cumbersome impact wrenches or torque multipliers which were formerly the only viable option for working with very large nuts ...

5. Gene knockout - Wikipedia

   en.wikipedia.org/wiki/Gene_knockout

   A complete gene knockout permanently inactivates the gene, while a conditional gene knockout allows for the gene to be turned off and on at specific times or in specific tissues. Conditional knockouts are particularly useful for studying developmental processes and for understanding the role of a gene in specific cell types or tissues.

6. NSW Koori Knockout - Wikipedia

   en.wikipedia.org/wiki/NSW_Koori_Knockout

   The Knockout emerged from the new and growing mostly inner-city Sydney Aboriginal community in the late 1960s and early 1970s. The emerging political movement in Redfern for self-determination and justice, increased opportunities arising from post-referendum federal government initiatives and greater employment prospects in the industrial areas of Sydney influenced Aboriginal families ...