Related Products 7″ Diamond saw blade (180 x 1.0mm) $44.00 excl GST Diamond lap disk 6” PSA backing 360 grit $37.50 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.