Carbide Tip Adjustable Circle Cutter with Plain Brad Point Drill, 4mm Hex Key Wrench, 1-1/4'' Drill Bit and 2 Cutting Blades Carbide tips Dual blade design for faster, cleaner cuts Includes plain brad point drill, 4mm hex key wrench, 1-1/4'' drill bit and 2 cutting blades Drill bit size: 1/4'' with 118 degree split point Shank size: 3/8"