This bench grinder wheel provides fast, burr-free grinding action of tools and non-ferrous metals. For use on work benches and floor standing machines. Grinding wheel is balanced and able to run true. Provides clean, potent tool edges and surfaces. A Grinding Wheel that Shows True Grit Possessing a fine 100 grit profile with uniform and tightly bonded grains, this wheel is suited for delivering a smooth, professional looking finish. Specifications 8" Aluminum Oxide Bench Grinding Wheels Fine 100 Grit Thickness – 1" wide Fastening Type: Round Arbor Hole Diameter 5/8” Maximum Rotational Speed: 3600 RPM POWERTEC is a US based manufacturer of high quality woodworking machines, wood work accessories, and a wide assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the best innovations, technologies, and product development to the industry.