Dremel Ultra-Saw Cutting Wheel Kit, Specifications: 0.4375 in Arbor, 3-1/2 in Dia, Carbide/Diamond, Number of Pieces: 6, Suitable for: Dremel Corded and Cordless Ultra-Saws, Includes: (1) US540 Premium Diamond Tile Cutting Wheel, (2) US500 Premium Carbide Swiss Made Wood Cutting Wheel and (3) US510 Metal Cutting Wheels