"For grinding, deburring, surface prepping, cutting sheet metal, fiberglass and more","Outperform standard grinding wheels; maintain diameter, last longer and cut faster","Core bonding technology increases wheel life a minimum of 2,000% (20X) by exposing the full diamond particles which provides maximum grinding performance","Access hard-to-reach areas","Low sparks, odor and debris","Industrial diamonds attached directly to steel wheel core (Does not use segments)","For use on ferrous metals, concrete and ceramic","Can also be used on aluminum with proper lubrication","30,000 rpm Max","1/4\" Shank 2" 3-IN-1 DIAMOND GRINDING WHEEL 8120 | Matco Tools