HSS Co twist drill jobber length Materials: premium HSS Co 30°helix angle for drill Tolerance of shank diameter is h7—up to 13mm Tolerance of shank diameter is h6—over 13mm Tolerance of tool diameter is h8 130°point angle for drill The TiCN, TiAIN is available on your request. Application: Designed for high speed non-step 4D 5D drilling. Drilling in mild steel, cast iron, aluminium, alloyed, tool steel, etc. Advantage: Helical thinning-good chip removal, self-centering, reducing thrust and improving accuracy. Reinforced web and stub length-increasing rigidity and suitable for 4D 5D drilling.. Premium Cobalt HSS with superior TiN coating-higher speed and feed, longer service life High quality-good surface finishes, high productivity and weeding second operation. Main details Drill diameter: 2 32mm Flute length: 24 165mm Overall length: 56 245mm