Related Products Sintered diamond point, oval shape, 9mm dia, 3mm shank $20.00 excl GST 7″ economy sintered continuous rim lapidary blade. 180mm x 1.2mm $65.00 excl GST Electroplated diamond core drill, 30mm dia. 10mm shank. $38.00 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: 450030 Category: Core drills. Tags: core drills, Diamond drills, glass, glass work, lapidary.