27PC Diamond Titanium Coated Burrs & Cut off Wheel Disc Lapidary Rotary Bits Fit Dremel 150/240 Grit Working with Ceramics, Stone, Glass, Tile, Wood, Plastic , Fiberglass, All Natural Materials 20pc Titanium Coating Burrs - 150 Grits 5pc Diamond Wheels - 240 Grits 2pc Mandrels Shanks: 1/8 & 3/32 - Arbor: 5/64