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2. Rotary saw - Wikipedia

   en.wikipedia.org/wiki/Rotary_saw

   The Rotozip Tool Corp was a company started by Bob Kopras, an American drywall installer who pioneered this type of saw. Rotozip was later acquired by Bosch Tool Corp. in 2003. [1] This type of tool was originally developed for making cut-outs in drywall but it was later discovered that myriad other materials could easily be cut using the tool. [2]

3. Yankee screwdriver - Wikipedia

   en.wikipedia.org/wiki/Yankee_screwdriver

   The trade name "Yankee" screwdriver was first marketed by North Brothers Manufacturing Company in ≈16 April 1895, with the No. ≠130 spiral ratchet screwdriver. Yankee soon became and still is a well-known name in automatic spiral ratchet screwdrivers, with several other models, and model improvements patented by North Bros. over a 40-year ...

4. Annular cutter - Wikipedia

   en.wikipedia.org/wiki/Annular_cutter

   An annular cutter (also called a core drill, core cutter, broach cutter, trepanning drill, hole saw, or cup-type cutter) is a form of core drill used to create holes in metal. An annular cutter, named after the annulus shape , cuts only a groove at the periphery of the hole and leaves a solid core or slug at the center.

5. Jointer - Wikipedia

   en.wikipedia.org/wiki/Jointer

   The cutter head's axis of rotation is parallel to the table surfaces and perpendicular to the feed direction. The knives cut into the board in the direction opposite to the feed. Some more expensive jointer models contain a spiral, or helical, cutting head. This configuration has many individually mounted, self-indexing knives that can be ...

6. Wood shaper - Wikipedia

   en.wikipedia.org/wiki/Wood_shaper

   Tooling refers to cutters, knives, blades, as well as planer blades, and cutter heads. [clarify] Most blades are made from either a tool steel alloy known as high speed steel (HSS), or from carbide steel. Cutter heads are normally made from either steel or aluminum. High Speed Steel, carbide, aluminium, and steel for the cutter heads all come ...

7. Indexing head - Wikipedia

   en.wikipedia.org/wiki/Indexing_head

   Indexing heads are usually used on the tables of milling machines, but may be used on many other machine tools including drill presses, grinders, and boring machines. Common jobs for a dividing head include machining the flutes of a milling cutter , cutting the teeth of a gear , milling curved slots, or drilling a bolt hole circle around the ...