Description

Jobber drill set with cyl. shank Design: Particularly sturdy model. Profile grinding, right cutting, bright surface, nitrated bevels from 2.4 mm with precision ground point as well as wide flute length 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 flute length. 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.