Related Products Diamond lap disk 6” PSA backing 260 grit $33.00 excl GST Sintered diamond point, oval shape, 9mm dia, 3mm shank $20.00 excl GST Diamond lap disk 8” PSA backing 1200 grit $44.00 excl GST Flat diamond grinding wheel 6” x 2” 100 grit $175.00 excl GST Quantity Add to cart Product added to wishlist. Description These electroplated wheels are a fantastic tool for both lapidary and glasswork. All come with a 1″ arbor with bushings to bush 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: 526100 Category: Grinding Wheels. Tags: diamond tools, diamond wheels, glass, glass work, Grinding wheels, lapidary.