Related Products 7″ economy sintered continuous rim lapidary blade. 180mm x 1.2mm $65.00 excl GST Resin diamond belt, 8″ x 3″ 280 grit $80.00 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.