Amazon.com: Hotwin 320 Grit 100mm OD 20mm ID Bowl Shaped Diamond CBN Grinding Wheel Cup Dressing Tool for Various Tools and Cutters : Industrial & Scientific
Radiac Abrasives 6" Diam, 1-1/4" Hole Size, 3/4" Overall Thickness, 320 Grit, Type 6 Tool & Cutter Grinding Wheel Extra Fine Grade, Diamond, Resinoid Bond 34113112 - 95-304-2 - Penn Tool Co., Inc