Related Products Electroplated diamond belt, 8″ x 3″ (200 x 75mm) 240 grit $245.00 excl GST 12″ economy sintered continuous rim lapidary blade. 300 x 1.2mm $100.00 excl GST 4″ dia polishing felts, velcro backing. $15.00 excl GST Electroplated diamond core drill, 8mm dia. 8mm shank. $13.00 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: 450008 Category: Core drills. Tags: core drills, Diamond drills, glass, glass work, lapidary.