Burr (cutter)
From Wikipedia, the free encyclopedia
Burrs are small cutters used in die grinders, rotary tools or dentist's drills. The name may be considered appropriate when their small sized head (3 mm diameter shaft) is compared to that of a burr seed.
To maintain the correct surface speed and cutting conditions they are rotated at the highest speed possible, commensurate with their size and construction. The cutters shown in the image are made from tungsten carbide which allows them to run at higher speeds than similar HSS cutters, yet still maintain their cutting edges.
 Metalworking:
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