CW3-100 Astro Pneumatic Cut-Off Wheels 100PK features abrasive wheels that are designed for cut-off applications involving angle iron, rebar, pipe and bar stock and can be used in cutting sheet metal, metal hardware or fasteners. CW3-100 Astro Pneumatic Cut-Off Wheels 100PK feature a 46 grit, 3'' diameter and a 1/16'' thickness and a 3/8'' arbor hole that fits all brands of pneumatic cut-off tools.