Related Products Thin premium lapidary blades 250 x 1.0 mm $130.00 excl GST 400 grit silicon carbide, 500g pot. $17.00 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 Product code: 450008 Category: Core drills. Tags: core drills, Diamond drills, glass, glass work, lapidary.