Spiral drill STEEL dia. 6.1 mm HSS-G N DIN 338 118 universal Angle118 Diameter6.1 mm Flute length63 mm Length, total101 mm RPM from, grey cast iron, white cast iron522 RPM RPM from, hard non-ferrous metals1305 RPM RPM from, soft non-ferrous metals1566 RPM RPM from, steels over 700 N/mm1044 RPM RPM from, steels up to 700 N/mm1305 RPM RPM from, thermoplastics, fibre-reinforced plastics (GRP/CRP) 783 RPM RPM to, grey cast iron, white cast iron1305 RPM RPM to, hard non-ferrous metals2610 RPM RPM to, soft non-ferrous metals3133 RPM RPM to, steels over 700 N/mm1305 RPM RPM to, steels up to 700 N/mm1827 RPM RPM to, thermoplastics, fibre-reinforced plastics (GRP/CRP) 2088 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