HSS Countersink 90°, 1 flute

90° HSS-G countersinks, shape C, cylindrical shank, robust design with 1 flute. Due to CBN precision ground geometry very sharp and precise cutting edges.

Ideal for deburring or countersinking of the most commonly used materials. Best results with low rpms.
Material groups : 1.1 - 1.4 / 2.1 - 2.2 / 3.1 / 4.1 - 4.12 / 5.1 / 5.3