Spiral drill STEEL dia. 4.6 mm HSS-G N DIN 338 118 universal Angle118 Diameter4.6 mm Flute length47 mm Length, total80 mm RPM from, grey cast iron, white cast iron692 RPM RPM from, hard non-ferrous metals1731 RPM RPM from, soft non-ferrous metals2077 RPM RPM from, steels over 700 N/mm1385 RPM RPM from, steels up to 700 N/mm1731 RPM RPM from, thermoplastics, fibre-reinforced plastics (GRP/CRP) 1038 RPM RPM to, grey cast iron, white cast iron1731 RPM RPM to, hard non-ferrous metals3462 RPM RPM to, soft non-ferrous metals4154 RPM RPM to, steels over 700 N/mm1731 RPM RPM to, steels up to 700 N/mm2423 RPM RPM to, thermoplastics, fibre-reinforced plastics (GRP/CRP) 2769 RPM Spiral angle, from25 Spiral angle, to30 VersionSTEEL Drilling tools with cross grinding for industrial uses. Fully ground, right-hand turning versions that produce precise drill holes thanks to their high concentricity and exact centring. PFERD offers spiral drills in the STEEL (118 point angle) and INOX (135 poi