Bulk packaged 1 1/2 inch 200 grit diamond disk. Use with 1/16 inch screw mandrel, not included. Disk has a 1/16 inch hole 200grit, but may vary. 0.045 inch thick. Coated on both sides. Use with 1/8 inch Screw Mandrel which is not included. For use with Dremel Rotary Tools. Diamond disks can be used to some extent for cutting. However, there is a limited amount of diamond coating on the edge, most of the coating is on the side. For longer life, use with a cooling agent such as Eurotool Cut Lube.