Promat Twist drill DIN 338 type N Z3

Twist drill DIN 338 TypeN Z3 D.12mm HSS-Co profile closed cylindrical shank re.PROMAT : HSS-Co - DIN 338 - type N - point angle 130 ° - profile ground - with cylindrical shank - 3 cutting edges - right-hand cutting - with cross cut - for all normal drilling work in structural steels, unalloyed and alloyed steels up to 850 N/mm², cast materials, wrought aluminium alloys, cast aluminium alloys - Advantages: - particularly precise round holes similar to friction level (machine-dependent) of up to IT9 - significantly higher feed rates of up to 60% are possible thanks to the 3 cutting edges no slipping of the drill bit due to special tip geometry - no jamming when drilling in existing drill holes - less wear due to distribution of the work from 2 to 3 cutting edges Further technical features: - Cutting direction: right-hand cutting - Feed rate in steel up to 800 N: 0.25 mm/rev - Quality: profile-ground - Overall length: short.