19 Piece Cobalt HSS Drill Set. Manufactured from M35 HSSE grade steel with a 5% cobalt content for increased heat resistance and cutting performance. All bits are fully ground, with sizes over 2.5mm featuring a 135° non-slip split point for precise centring. Bits are produced in accordance to DIN 388 for high precision tolerances and geometric accuracy. Supplied in a robust plastic case clearly marked with each drill size, which secures and protects the drills when in storage. Sizes: 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, and 10mm Features: 1-10mm in 0.5mm increments M35 HSSE grade steel with 5% cobalt for increased heat resistance and cutting performance M35 HSSE grade steel with 5% cobalt for increased heat resistance and cutting performance Produced in accordance with DIN388 Supplied in a robust plastic case Specifications: Dimensions: H:25.2 x W:3.8 x D:23.5 cm Colour: Multi Guarantee:5 years Material: Steel Model Number: FAIMSET19COB