AOZ4283 Features Quality Radnor wheels you can depend on for the results you need grinding alloys, steels, and ferrous metals. Type 27 depressed center. RADNOR Resin bondAluminum oxide grainVersatileLow initial cost per wheelManufactured to ANSI standards in plants worldwide Durable long lasting wheel. Less down time for wheel changes. Consistent performance at a competitive priceIdeal for small jobs on a variety of metal applications from carbon to stainless steelsProvides safety, strength and straight cutsQuick cutting action and low kerf loss Product Type: Cut Off Wheel Generic Specifications Use Type 27 with standard back flange and nut tool configuration.