Inch Series - Series C100 are designed with spiral flutes and various lengths and forms to give high quality centre holes that suit most applications. Features and Benefits Manufactured from high speed steel for increased tool durability Spiral flutes create quality centre holes Suitable for drilling steel, cast iron, aluminium, brass and plastics Specifications 60 inclusive angle Point angle 120 Plain round shank Manufactured to BS328: Part 2:1986, DIN333A, ISO866, ISO2540, ISO2541 Typical Applications Steel Stainless Steel Cast iron Aluminium Brass Plastics