Related Products Diamond lap disk 8” PSA backing, 220 grit $50.00 excl GST 16″ economy sintered continuous rim lapidary blade. 400 x 1.3mm $225.00 excl GST Diaface diamond handpad 400 grit. $34.00 excl GST Electroplated diamond core drill, 35mm dia. 10mm shank. $42.00 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: 450035 Category: Core drills. Tags: core drills, Diamond drills, glass, glass work, lapidary.