Related Products Diamond twist drills 2.0mm dia. $2.50 excl GST Diamond core drills 3mm dia. $6.00 excl GST Electroplated diamond core drill, 25mm dia. 8mm shank. $33.00 excl GST Electroplated diamond core drill, 12mm dia. $19.00 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: 450012 Category: Core drills.