Norton 3X Blue Grinding Wheel I Grade Sharpening
After grinding, a few strokes on a bench stone and your tools are ready for use. This wheel is in a softer Igrade suitable for high carbon steel. Softer wheels run much cooler than harder wheels. The 8" wheel has a 1" arbor hole with bushings for 7/8", 3/4" and 5/8" arbors and is rated for 3600 rpm.