Related Products Sintered diamond point, ball shape 4mm dia, 3mm shank $20.00 excl GST 120 grit silicon carbide, 500g pot. $13.00 excl GST Electroplated diamond belt, 8″ x 3″ (200 x 75mm) 120 grit $250.00 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 Product code: 450030 Category: Core drills. Tags: core drills, Diamond drills, glass, glass work, lapidary.