General Tools 195-5/8 Countersink Bit, 5/8-Inch 5/8" HS Countersink General Tool's countersink drill bit is the perfect drill bit for finishing the woodworking project right The drill bit has a 1/4 inch round shank; countersinking screws gives wood projects that beautiful finished and complete look Drill bit has a diameter of 5/8"; useful in making furniture, cabinets, shelves and small wood projects This high speed countersink has a 6 flute rose pattern for chatter free countersinking; works effectively on steel, brass, aluminum, plastic and wood Countersink bit is made of high-speed steel with six flutes. 82 degree point angle