Related Products Diamond lap disk 8” PSA backing, 180 grit. $50.00 excl GST 10″ economy sintered continuous rim lapidary blade. 250 x 1.2mm $75.00 excl GST Electroplated diamond core drill, 10mm dia. 8mm shank. $16.00 excl GST Electroplated diamond core drill, 40mm dia. 10mm shank. $48.00 excl GST Quantity Add to cart Product added to wishlist. Add to WishlistProduct added! Browse WishlistThe product is already in the wishlist! Browse Wishlist Share TweetPin It Product code: 450040 Category: Core drills. Tags: core drills, Diamond drills, glass, glass work, lapidary.