Designed for use in cutting sheet metal, aluminum, stainless steel tubing, prop shafts, clamps and rusted bolts. For use on utility type cut-off tools.. Rigid, reinforced resin-bonded wheel provides excellent durability. Versatile wheel is suitable for cutting a wide variety of materials. Tough aluminum oxide grains cut fast to enhance productivity. Easy attachment to the appropriate cut-off tool with hub and retainer nut providing a simple and quick replacement of worn discs. DO NOT USE ON TOOL WITHOUT GUARDS.