HSS-Co countersink cutters 90°

HSS-Co cutter set with 3 cutting edges for 90° countersunk-headed screws according to DIN 1866, DIN 335/C 90°, to use on the greater part of ferrous and non ferrous metals.
Diameters mm 6,3 - 8,3 - 10,4 - 12,4, cylindrical shank.