Precision drill bit resurfacing tool

Details Precision drill bit resurfacing tool Precision drill bit resurfacing tool

B - Operations, Transporting

24

B

51/84

B24B 19/16 (2006.01) B24B 3/28 (2006.01)

Patent

CA 1178057

ABSTRACT OF THE DISCLOSURE The drill grinder includes a drill bit holder mounted for movement about a swing axis provided by a rocker arm. The swing axis parallels the plane of the grinding wheel. An index ring mounted on the holder provides precise indexing of the drill bit. The extent of micrometric feed movement of the rocker arm is precisely marked so that such movement can be exactly dupli- cated as to all lip surfaces, thus achieving a symmetrically surfaced drill bit. These structures are integrated in a system that provides simple adjustment for drill bit size, clearance angle and contour control of lip surface.

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