Bosch PRO HSS Countersink Bit

The 20mm Bosch PRO HSS Countersink Bit is the largest size in the range, suited to deburring and countersinking pre-drilled holes in steel where a broader countersink is required. It's ideal for larger fixings and for finishing bigger holes cleanly. Built from high-speed steel (HSS), it delivers strength and resistance to heat for reliable performance. The 90° cutting edges help you achieve clean, burr-free countersink holes precisely where you need them. The cylindrical shank fits three-jaw drill chucks, making it simple to use with your existing drill. Features and Benefi