Design: Particularly sturdy model. Profile grinding, right cutting, bright surface, nitrated bevels from 2.4 mm with precise point geometry as well as wide clamping slots with heavily rounded back edges and excellent thermal resistance. Point thinning according to DIN 1412, form A. Angle of rake larger than normal, core thickness thicker than normal and without core gradient.
Application: Suitable for drilling depths above 3 x D due to bevel nitration and wide clamping slots. Particularly suitable for alloyed/non-alloyed steels and casting types above 800 N/mm² in strength, hot and cold work steels, roller bearing steels, high-alloy steels, tempered steels and case hardening steels. Supplied in a robust, high quality plastic cassette with automatic drill setup function when opened. Set consisting of (order no. 1022).
* With intermediate sizes for tapped holes: 1 piece each Ø 3.3; 4.2; 6.8; 10.2 mm.