Related Products Electroplated diamond core drill, 40mm dia. 10mm shank. $48.00 Out of Stock 16″ economy sintered continuous rim lapidary blade. 400x 1.2mm $200.00 Out of Stock Convex diamond carving wheel 2.5″ x 1/4″ 100 grit $50.00 Convex diamond grinding wheel, 4″ x 1/2″ 100 grit $110.00 Quantity Add to cart Product added to wishlist. Description These electroplated convex wheels are a fantastic tool for carving designs into your work. Good on glass or stone. All come with a 1″ arbor and bushings to reduce the arbor to 3/4″, 5/8″, and 1/2″. Add to WishlistProduct added! Browse WishlistThe product is already in the wishlist! Browse Wishlist Share Product code: fc95a08e7832 Category: Grinding Wheels. Tags: diamond tools, diamond wheels, glass work, lapidary.