ISO 7755-3:1984

Hardmetal burrs — Part 3: Cylindrical round- (ball-) nose burrs (style C)

This part of ISO 7755 lays down the main dimensions of the cutting part for hardmetal burrs of cylindrical shape, with a round- (ball-) nose and designated by the symbol C. Tolerances on the cutting diameter, direction of helix and cut, diameter and length of the cylindrical shank and designation of burrs are dealt with in ISO 7755-1