Bosch CO21B 21 pc. Cobalt M42 Drill Bit Set

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Product description

  • Cobalt M42 drill bit provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum
  • Three-flat shank on bits 3 16 In. and larger deliver better bit grip
  • Split points on bits 1 8 In. and larger allow for easy starts with no skating, eliminating the need for a center punch
  • Surface-hardened tip penetrates tough abrasive materials

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