Mizzy Heatless Wheels 5/8" (1/8" thickness) Used for deburring and finishing. Hard, square-edged wheels. Loose, coarse construction. Keeps the grinding process cool and suitable for materials such as plastic and metal. Can be used to produce a matte finish. With pin-hole for mounting on mandrel. The wheels may be trued with a file. Supplied in a box of 50.