Spade drill sharpening fixture

Details Spade drill sharpening fixture Spade drill sharpening fixture

B - Operations, Transporting

24

B

51/164, 51/46

B24B 3/24 (2006.01) B24B 41/06 (2006.01)

Patent

CA 1046775

ABSTRACT A fixture for holding a spade drill on a reciprocable grinder table during the sharpening thereof comprises a base for resting on the grinder table, a rocker supported on the base and pivotable to various fixed positions for providing a selected dip angle, and means for supporting the spade drill on the upper side of the rocker in a predetermined angular relation with res- pect to the horizontal table surface, such angular relation pro- viding the rake angle for enabling grinding the top-rake flat of the drill. The base can be tilted to rest on a rear support surface which is disposed In a predetermined angular relation to enable grinding of the clearance portion of the spade drill at a proper angle. Selection of skew angle is also provided as a feature. The fixture can accommodate an entire series of spade drills to be ground to various dimensional specifications.

266405

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