Spiral drill INOX dia. 2.9 mm HSS-E Co5 N DIN 338 135 for tough and hard materials Angle135 Diameter2.9 mm Flute length33 mm Length, total61 mm RPM from, grey cast iron, white cast iron1098 RPM RPM from, hard non-ferrous metals2745 RPM RPM from, rust and acid-resistant steels1098 RPM RPM from, soft non-ferrous metals3295 RPM RPM from, steels over 700 N/mm2196 RPM RPM from, thermoplastics, fibre-reinforced plastics (GRP/CRP) 1647 RPM RPM to, grey cast iron, white cast iron2745 RPM RPM to, hard non-ferrous metals5491 RPM RPM to, rust and acid-resistant steels2196 RPM RPM to, soft non-ferrous metals6589 RPM RPM to, steels over 700 N/mm2745 RPM RPM to, thermoplastics, fibre-reinforced plastics (GRP/CRP) 4393 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