51 Drills DIN 338 HSS - 1,0 mm - 6,0 mm

51 Drills DIN 338 HSS in Cobalt metal cassette, profile-ground quality with cross grinding of 1.0 mm - 5.9 mm, rising in increments of 10, 130 ° point sharpening

For drilling alloyed and unalloyed steels and casting types with strengths up to more than 800 N / mm, hot and cold work steels, for high-alloyed and tempered and case-hardened steels.