Button sharpening

Details Button sharpening Button sharpening

B - Operations, Transporting

24

B

51/147, 51/84

B24B 19/16 (2006.01) B24B 3/33 (2006.01) B24D 5/02 (2006.01) E21B 10/52 (2006.01)

Patent

CA 2036284

ABSTRACT A hardmetal drill bit button is restored by forming its head to a chisel shape. Various chisel shapes and a machine for the purpose are disclosed. Also disclosed are various kinds of grinding wheels for the purpose, and a method and means forsimultaneously dressing the steel of the bit body.

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