Related Products Flexible resin diamond pad 100mm dia 800 grit $28.00 Electroplated diamond core drill, 25mm dia. 8mm shank. $33.00 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: 450025 Category: Core drills. Tags: core drills, Diamond drills, glass, glass work, lapidary.