Amazon.com: AmaCupid Bench Grinding Wheel 6 inch. for Sharpening Quenched Steel, High Carbon Steel and Other Cutting Tools. White Aluminum Oxide Abrasive. 1/2 inch Arbor, 3/4 inch Thickness, 80 Grit : Industrial & Scientific
Norton White Grinding Wheel
STENS New Grinding Wheel for Efco Mini Material Pink Aluminum Oxide, O.D. 4 in., Thickness 1/4 in. 700-245 - The Home Depot
Grinding Wheel Best Practices - How to Perform a Ring Test