PFERD Reamers & Countersinks Countersink 609865 - PFERD 25202146, The PFERD 25202146 countersink is a high-speed steel (HSS) tool designed for precision machining applications. With a 16.5 mm diameter and a 90° cutting angle, it is suitable for creating clean, conical recesses in various materials. Ideal for use in metalworking and woodworking, this tool ensures smooth finishes in countersinking tasks. PFERD 25202146 KES countersink 16.5mm HSS 90° for hard materials