With the Norton 66253051077 grinding wheel, you sharpen and grind hardened tool steels with complete control and precision. The friable white aluminium oxide grain (38A) in grit 60 constantly renews sharp cutting edges, ensuring cool cutting without overheating, burning, or loss of temper. Its balanced vitrified bond and 200X20X32 mm dimensions deliver smooth, low-vibration operation on stationary bench grinders at peripheral speeds up to 45 M/S. It allows you to restore clean, sharp cutting edges on hss tools, chisels, and drills quickly and reliably.