S & G Tool Aid 94860 Pack of 5 Cut Off Wheels - Abrasive reinforced wheels are ideal for automotive and autobody repair. Cut all ferrous materials with ease. Cut through clamps, hangars, sheet metal, angle iron, tubing, castings, mufflers and rusted bolts. Leaves clean edge. Easier and safer to control than a torch, faster and less effort than a hacksaw. Wheels comply with American National Standards Institute Code B7.1 (1968 Rev.) and OSHA. Rated at 25,000 RPM maximum speed. Pneumatic cutting tool should have safety guard. Always wear eye and face protection.