3M 9" Type 27 Ceramic Depressed Center Wheels, 5/8"-11 Arbor, 1/8"-Thick, 6650 RPM

This grinding wheel is designed for use as both a depressed-center grinding wheel and a cut-off wheel. It features precision-shaped grain, with sharp, triangular structures that act like cutting tools to slice through metal. The grain continuously shelf-sharpens as the points break off, which helps to reduce friction and ensure extended high performance in heavy-duty production applications. Use on mild and stainless steel, in applications such as cutting, grinding, gouging, notching, fillet weld removal, and beveling.