Heller 21553 4 Blacksmith HSS Drill 15.5mm x 178mm - 10mm Shank

Shank form and tool length optimized for use with pillar-type drills.
Ground HSS bit with maximum precision.
Ideal for drilling in alloyed and unalloyed steels up to 1100 N/mm².
Web thinning with 118° point angle for maximum service life.
Suitable for use on sheet metal, non-ferrous metals, CrNI steel, stainless steel, cast iron and cast steel.