55650 RTA Furniture Drill/Countersink Assembly 10mm Dia x 106mm Long x 7mm Shank

Commonly used for RTA (ready-to-assemble) furniture fittings. Specially-treated high-speed steel countersink with polished slow-spiral drill bit. Will perform 3 tasks in one: pilot hole, clearance hole and countersink. For connecting screws (Confirmat, Directa, etc.). The shankless countersink is heat treated.