Designed for most stationary bench grinders. Ideal for general grinding and sharpening applications on mild steel. Not for carbide applications. Product Features:Wheel size: 8 (203.2 millimeters)Thickness: 1 (25.4 millimeters)Wheel type: Type 1 (flat)Arbor: 1 (25.4 millimeters)Grit: 60Maximum revolutions per minute (RPM): 3,600Tool type: Bench grinderTool type: Bench grinder