?15 DIFFERENT ROUTER BITS?: Straight-3MM Cove Box Bit-6.35mm; Cove Box Bit-6.35MM Dovetail Drill Bit-12.7MM Rounded on Bit-6.35MM Straight-7MM Bearing Flute Trim-12.7mm Straight-16MM Cove Box Tip-3.17MM Bearing 45° Chanfer Bit-32MM Straight-6MM Rounded on Bit-9.5MM 90° V Groove Cutter, 12.7mm Ogee Roman Bit-4MM Straight-12MM. ?6.35MM HANDLE DIAMETER?: All bits have a precision ground 6.35mm shank diameter that fits all 1/4" router machines, set of forged tool steel router bits with high quality carbide blades for professional woodworking. ?MULTI APPLICATION?: Forged tool steel router bit set with high quality carbide blades for professional woodworking. professional wood. Soft and semi-hard wood, MDF boards, plywood, plywood. ?PORTABLE AND MULTI-PURPOSE?: It is perfect for woodworking, for edging, cutting, grooving, for refining projects made of wood and ideal for carpenters and hobbyists of all experience levels (an Allen wrench for removing bearings is