Grinding Wheel; Type Type 27, Fast; Diameter 7 Inch; Thickness 1/4 Inch; Mounting Size 5/8 Inch-11 TPI; Grade A24N; Abrasive Material Aluminum Oxide Grain; Speed Rating 8500 RPM; Cut Material Ferrous Metal (Stainless Steel, Iron, Steel, Weld); Application Grinding

The "softer" a grinding wheel is the faster it will remove metal; Highest quality virgin aluminum oxide grain assures consistent high stock removal for tough application; All sizes are made with uniform grain throughout, no filler grain used in the backing; All wheels are internally reinforced with the highest quality fiberglass for maximum safety; Soft bond for fast stock removal; Made in USA