Spiral drill INOX dia. 2.4 mm HSS-E Co5 N DIN 338 135 for tough and hard materials Angle135 Diameter2.4 mm Flute length30 mm Length, total57 mm RPM from, grey cast iron, white cast iron1327 RPM RPM from, hard non-ferrous metals3317 RPM RPM from, rust and acid-resistant steels1327 RPM RPM from, soft non-ferrous metals3981 RPM RPM from, steels over 700 N/mm2654 RPM RPM from, thermoplastics, fibre-reinforced plastics (GRP/CRP) 1990 RPM RPM to, grey cast iron, white cast iron3317 RPM RPM to, hard non-ferrous metals6635 RPM RPM to, rust and acid-resistant steels2654 RPM RPM to, soft non-ferrous metals7962 RPM RPM to, steels over 700 N/mm3317 RPM RPM to, thermoplastics, fibre-reinforced plastics (GRP/CRP) 5308 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