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2. Automatic center punch - Wikipedia

   en.wikipedia.org/wiki/Automatic_center_punch

   The automatic center punch mechanism has been used for a wide variety of other applications. These include Marking and starting a hole for drilling without the bit "walking" out of alignment; Letter stamp sets; Glass-breaking tools used in rescue work and a common tool for a car thief. Impact tool for hardness testing [21]

3. Harbor Freight Tools - Wikipedia

   en.wikipedia.org/wiki/Harbor_Freight_Tools

   Harbor Freight Tools, commonly referred to as Harbor Freight, is an American privately held tool and equipment retailer, headquartered in Calabasas, California. It operates a chain of retail stores, as well as an e-commerce business.

4. Hole punch - Wikipedia

   en.wikipedia.org/wiki/Hole_punch

   A related office tool is the eyelet punch. This is a single-hole punch which also crimps a metal fastening loop around the hole, similar to a rivet. It is used to permanently secure a few sheets of paper together. A similar tool, generally known as a holing pincer, is used in animal husbandry.

5. Comb binding - Wikipedia

   en.wikipedia.org/wiki/Comb_binding

   To bind a document, the user first punches holes in the paper with a specialized hole punch. Pages must be punched a few at a time with most of these machines. If hard covers are desired, they must be punched as well. In bulk applications, a paper drilling machine may be used. Then the user chooses a spine size that will match the document.

6. Punch (tool) - Wikipedia

   en.wikipedia.org/wiki/Punch_(tool)

   A punch is a tool used to indent or create a hole through a hard surface. They usually consist of a hard metal rod with a narrow tip at one end and a broad flat "butt" at the other. When used, the narrower end is pointed against a target surface and the broad end is struck with a hammer or mallet , causing the blunt force of the blow to be ...

7. Blanking and piercing - Wikipedia

   en.wikipedia.org/wiki/Blanking_and_piercing

   Blanking and piercing are shearing processes in which a punch and die are used to produce parts from coil or sheet stock. Blanking produces the outside features of the component, while piercing produces internal holes or shapes. The web is created after multiple components have been produced and is considered scrap material.