Pack of short twist drills DIN 1897 type N HSS-Co 5 rectified with self-centering

Short and stable standard drill made of high-performance high-speed steel and cobalt alloy with higher resistance to thermal setting.
Suitable for thin materials such as sheet steel High resistance against breakage.
Rectification in the shape of a conical point with split point according to DIN 1412 C. Cutting angle: 135º.
Spiral angle: 20-30º.
Ø-tolerance: h8.
Golden brown surface Cut to the right.
Applications: for alloyed and unalloyed steel (up to a strength of ca.
900 N / mm²). Cast iron, malleable cast iron, high chromium alloy steels such as stainless steel and acid and rust resistant steels.
Translucent plastic case with red background label.