Bosch PRO HSS Countersink Bit

The 8mm Bosch PRO HSS Countersink Bit is the smallest size in the range, designed for deburring and countersinking pre-drilled holes in steel. It's a handy choice for smaller holes and lighter fixings where a compact countersink is all you need. The high-speed steel (HSS) construction gives strength and resistance to heat, while the 90° cutting edges help produce clean, burr-free countersink holes precisely where you need them. A cylindrical shank ensures compatibility with three-jaw drill chucks, so it's quick to fit and use.