COBALT DRILL BIT SET (21/PC)

The Bosch Cobalt Metal Drill Bit Set features bits designed for demanding applications in stainless, cast iron, and high-density metal, providing 4X longer life than standard high-speed steel drill bits. The bits have a split-point tip for no-skate starts and clean holes. Bits larger than 3/16" also have a three-flat shank for better grip and reduced slippage.