This model arrives with a pointed drilling point so prior drilling is not required. Conically boosting cutting corners and thoroughly free ground circumference for a matching cut. With scale in the flutes, and three drive flats in the shank. This unit is burr and chatter mark free and is made of stainless steel (V2A) 0.1 - 1 mm, 0.1 - 2 mm Sheet steel and non-ferrous metals: 0.1 - 5 mm, plastics up to 10 mm.
Adding to this, is is perfectly suited for regular construction steels up to 750 N/mm2, alloy free, tempered and quenched steels up to 750 N/mm2, unalloyed case-hardened steels up to 750 N/mm2, nitriding steels up to 750 N/mm2. ? unalloyed quenched and tempered steels up to 900 N/mm2, alloyed quenched and tempered steels up to 900 N/mm2, nitriding steels up to 900 N/mm2, tool steels up to 900 N/mm2, spheroidal graphite cast iron, tempered cast iron and cast iron and can be utilized with cutting oil.