Related Products Diamond lap disk 6” PSA backing 100 grit $38.00 excl GST Electroplated diamond core drill, 10mm dia. 8mm shank. $16.00 excl GST Diamond lap disk 8” PSA backing 1200 grit $48.00 excl GST Flat diamond grinding wheel 6” x 1.5” 100 grit $180.00 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 TweetPin It Product code: 526100 Category: Grinding Wheels. Tags: diamond tools, diamond wheels, glass, glass work, Grinding wheels, lapidary.