ISO 7755-9:1984, Hardmetal burrs - Part 9 : 60 degrees and 90 degrees cone burrs (styles J and K)

This part of ISO 7755 lays down the main dimensions of the cutting part for hardmetal burrs of 60 cone and 90 cone shape and designated by the symbols J and K. 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.