Precision drill sharpener and grinding wheel assembly therefor

Details Precision drill sharpener and grinding wheel assembly therefor Precision drill sharpener and grinding wheel assembly therefor

1996-07-05

1998-04-07

Rose, Robert A.

Abrading

Machine

Rotary tool

451178, 451278, 451375, 451449, 279 60, B24B 500

Patent

active

057357323

ABSTRACT:
A precision drill sharpener and grinding wheel assembly is provided, as is a corresponding drill chuck for use with the drill sharpener, in which the drill sharpener includes a lever and spring clip alignment subassembly for properly positioning a drill in the drill chuck, and sharpening ports for sharpening the drill and splitting the drill tip, the sharpening ports being positioned such that a single grinding wheel assembly is used to both sharpen the drill and split the tip. The drill sharpener uses a small diameter grinding wheel operated at high speed to provide cutting rates comparable to large industrial sharpeners. The drill chuck is of short length, relative to most of the drills to be sharpened, and is open at a back end, enabling the manipulation of the drill by its shank relative to the drill chuck when disposed in the alignment subassembly.

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Darex brochure entitled: "Darex Super Precision Drill Sharpeners: Reflect the Quality of Your Work".
SP 2000 and SP 2500 Super Precision Drill Sharpeners User's Guide.

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