Dremel 545 Diamond Wheel Diamond Grit 1-in Cutting Wheel AccessoryIdeal for cutting, sawing, carving, sharpening and filing hard materials including marble concrete, brick, porcelain, ceramics, epoxy and hard woods Wheel is completely coated with fine diamond particles for working with hard materials Designed to last and not lose its shape or break, it provides smooth, fine cuts Not recommended for metal Includes 402 mandrel Thickness: . 023 in, 0. 6 mm Features Sub Brand 545 Diamond Wheel CA Residents: Prop 65