Twist drill point splitting/web thinning apparatus

Details Twist drill point splitting/web thinning apparatus Twist drill point splitting/web thinning apparatus

1982-09-09

1984-12-04

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51219PC, B24B 1900

Patent

active

044855966

ABSTRACT:
A fluted twist drill point splitting/web thinning apparatus is disclosed which permits simple point splitting/web thinning of conventional sharpened twist drills. The apparatus is uniquely designed such that either of the two operations, that is point splitting or web thinning, can be simply and accurately carried out with the same assembly. The apparatus also includes the provisions of a grinding wheel dressing diamond mounted on a forward face of the apparatus.

REFERENCES:
patent: 1148524 (1915-08-01), Murray
patent: 2363482 (1942-10-01), Clarke
patent: 4001975 (1977-01-01), Bernard et al.
patent: 4093247 (1978-06-01), Bernard et al.

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