The HSS countersink with hexagonal shank allows for a smooth sinking of screws and deburring of holes in soft materials. The ground countersink made of HSS steel ensures the best surface quality and flushness. Three 90-degree cutting edges enable chatter-free operation in hard materials and burr-free quality results. A hexagonal shank with high power transmission ensures flush sinking. It is suitable for non-ferrous metals, steel, and cast iron, and features a hexagonal shank for universal use. The HSS countersink with hexagonal shank is manufactured according to DIN 335. The best results can be achieved at low speeds.