CGW Aluminum Oxide 6" x 3/4" Grinding Wheel, White, 120 Grit. out of 5 stars (4) Reviews ... Aluminum Oxide 8" x 1" Grinding Wheel, Pink, 120 Grit. Clearance. out of 5 stars (6) Add to Cart ... Never could get the stone to run true because it had a wobble when replaced the stone with another and I ...