Spiral drill INOX dia. 6.7 mm HSS-E Co5 N DIN 338 135 for tough and hard materials Angle135 Diameter6.7 mm Flute length63 mm Length, total101 mm RPM from, grey cast iron, white cast iron475 RPM RPM from, hard non-ferrous metals1188 RPM RPM from, rust and acid-resistant steels475 RPM RPM from, soft non-ferrous metals1426 RPM RPM from, steels over 700 N/mm951 RPM RPM from, thermoplastics, fibre-reinforced plastics (GRP/CRP) 713 RPM RPM to, grey cast iron, white cast iron1188 RPM RPM to, hard non-ferrous metals2377 RPM RPM to, rust and acid-resistant steels951 RPM RPM to, soft non-ferrous metals2852 RPM RPM to, steels over 700 N/mm1188 RPM RPM to, thermoplastics, fibre-reinforced plastics (GRP/CRP) 1901 RPM Spiral angle, from36 VersionINOX 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) an