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2. 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.

3. Grinding machine - Wikipedia

   en.wikipedia.org/wiki/Grinding_machine

   Rotating abrasive wheel on a bench grinder. Pedal-powered grinding machine, Russia, 1902. A grinding machine, often shortened to grinder, is any of various power tools or machine tools used for grinding. It is a type of material removal using an abrasive wheel as the cutting tool. [1]

4. Woodchipper - Wikipedia

   en.wikipedia.org/wiki/Woodchipper

   The cutting blades of a small electric chipper. The blades can be removed, by loosening the bolt in the center, to facilitate sharpening or for replacement. Much larger machines for wood processing exist. "Whole tree chippers" and "Recyclers", which can typically handle material diameters of 60–180 cm (2–6 ft) may employ drums, disks, or a ...

5. Grinding (abrasive cutting) - Wikipedia

   en.wikipedia.org/wiki/Grinding_(abrasive_cutting)

   A man grinding on metal using an angle grinder, causing a lot of sparks. Grinding is a type of abrasive machining process which uses a grinding wheel as cutting tool. A wide variety of machines are used for grinding, best classified as portable or stationary: Portable power tools such as angle grinders, die grinders and cut-off saws

6. Disc cutter - Wikipedia

   en.wikipedia.org/wiki/Disc_cutter

   Cutting sheet metal, sizing metal stock for welding, cutting a weld to re-weld it, and cutting and notching steel pipe are just a few examples. Die grinders and chop saws are other common tools used with cutting discs. Smaller projects and smaller or more precise cuts may require a die grinder equipped with a cutting wheel. These cutting wheels ...

7. Tool and cutter grinder - Wikipedia

   en.wikipedia.org/wiki/Tool_and_cutter_grinder

   During normal use, cutting edges either wear and/or chip. The geometric features of cutting tools can be automatically measured within the CNC tool grinder and the tool ground to return cutting surfaces to optimal condition. Significant software advancements have allowed CNC tool and cutter grinders to be utilized in a wide range of industries.