Dormer G142 20.50MM HSS Straight Shank 90DEG Countersink DIN 335 C

90 degrees Angle - designed to chamfer holes to accommodate standard fasteners with 90 degree heads Premium HSS material - can be used for chamfering holes in many materials including steel, aluminium, stainless steels Reduced plain shank - allows large diameter countersinks to be held in standard holders and chucks Bright finish - prevents work piece material from sticking to the cutting edge Increased relief - provides a sharper edge to improve performance when machining sticky materials