Bulk Packaged 6pc 13/16 x 0.010 inch - 400 Grit Diamond Coated Disk Set. Includes 5 disks and a screw mandrel with an 1/8 inch shank. For use with Dremel Type 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.