Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Silicon Carbide Wheels - Fine by Grobet Sale $37.80 | / SKU 11-740 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available Silicon Carbide Wheels - Fine Stones for grinding mild steel, soft metals, such as copper, bronze, gold, silver, etc., and some gemstones. 2" diameter. 1/4" thickness. 1/4" hole. Fine grit. Rating on wheels is not to exceed 8500 rpm.