Related Products Thin premium lapidary blades 200 x 0.8 mm $100.00 excl GST V shape grinding wheel 4″ x 1/4″ 400 grit $100.00 excl GST Flat diamond grinding wheel 6” x 1.5” 360 grit $180.00 excl GST Electroplated diamond core drill, 15mm dia. 8mm shank. $22.00 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: 450015 Category: Core drills. Tags: core drills, Diamond drills, glass, glass work, lapidary.