1966A, Type N, K5-20FH, solid carbide, TiAlN coating, angle of twist 30°, angle of cut 3°, cutting tolerance ± 0.01, cylinder(without flat, HA), shank tolerance h5, short, centre cut, number of teeth 2, DIN 6535, HSC Application For roughing, finishing and suitable for HSC finishing in almost all materials = 55HRC.