37PC Diamond Titanium Coated Burrs & Cut off Wheel Disc Lapidary Rotary Bits 150/240 Grit Working with Ceramics, Stone, Glass, Tile, Wood, Plastic , Fiberglass, All Natural Materials 30pc Titanium Coating Burrs - Grit: 150 5pc Diamond Wheels - 240 Grits 2pc Mandrels Shanks: 1/8 & 3/32 - Arbor: 5/64