3M™ Depressed Centre Wheel, aluminum oxide, type 27, grade 24, 4 1/2 in x 1/4 in x 7/8 in

Features

• "Type 27 Contains grade 24, aluminum oxide mineral Aluminum oxide mineral is friable and reveals sharp cutting edges for a consistent cut Use with tools and accessories designed for depressed center grinding wheels For safety, always use on a tool with an approved guard, as per ANSI B7.1"