Fräser.

摘要

A throw away cutter having a cutter body (1) formed with chip pockets (3) and a plurality of throw away inserts (2) having cutting edges. Each pocket (3) is formed at least at the front or inner side of the body with a spherical blind groove (3a). The center of radius of curvature of the spherical blind groove is located on an imaginary line drawn from the front end of each cutting edge toward the pocket at a substantially right angle with respect to each cutting edge.