FORMAT Countersink set DIN335 K20 form C 90deg. 6.3-20.5mm

90° countersinks and deburring countersinks set, carbide

Design: DIN 335-C. 90° countersink angle. Axial and relief ground and CBN deep-ground. With straight, u-shaped flute length and flutes ground from solid. For tough materials such as Hardox 400/500, steels up to 60 HRC.

Application: The excellent cutting properties and easy machining process result from the cone-shaped relief grinding on the coat and angle of rake. The countersink achieves the best results with the strongest feed and lowest cutting speed.

Note: Sufficient supply of coolant is essential.