3M's highest performing, longest lasting wheel used for cutting sheet metal, frame rails, clamps and rusted bolts. Constructed with premium grade abrasives, these wheels out-cut and out-last General Purpose wheels. Typically last 3 to 8 times longer than competitive aluminum oxide cut-off wheels on the following materials: steel, stainless steel, sheet metal, fiberglass and aircraft alloys. Green Corps brand cut-off wheels resist cracking and chipping and generate a cooler cutting action on most materials. Size: 3" x 1/32" x 3/8" Package of 5 cut-off wheels Max Operating Speed: 26,000