Twist drill point splitting/web thinning apparatus

摘要

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.