High-Speed Steel (Hss) Countersink Bit

A compact 90° countersink bit crafted from high-speed steel. The conical cutting head and solid shank make quick work of deburring and chamfering metal and plastic, leaving clean, ready-to-drill edges. This bit is offered in several diameters to suit a range of counterbore tasks, including 6.3 mm, 10.4 mm, 12.4 mm, 16.5 mm and 20.5 mm, with a single–bit pack option available. The steel construction keeps edge sharp under repeating use, so you can rely on consistent chamfering as you work through project after project.

Whether you are shaping edges for screws or preparing through-holes for fasteners, this Countersink Bit from Ruwag delivers a steady, precise cut. Attach it to standard drill gear and guide it with steady hands to achieve uniform countersinks in metal or plastic materials.