Related Products 6″ economy sintered continuous rim lapidary blade. 150mm x 0.8mm $48.00 excl GST Thin premium lapidary blades 300 x 1.2 mm $170.00 excl GST Convex diamond carving wheel 4″ x 1/4″ 100 grit $100.00 excl GST Electroplated diamond core drill, 50mm dia. 10mm shank. $55.00 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: 6b16e7e79f10 Category: Core drills. Tags: core drills, Diamond drills, glass, glass work, lapidary.