Check the listing for details. NEW 2022 Korda Bait Drill & Cork Drill /Corks All Sizes Carp Fishing. Condition: New. Listed at 5.44 USD. These precision engineered drill bits come in a choice of 1mm, 4mm, 6mm, or 8mm diameters, making them perfect for boring-out any hookbait and adding buoyancy to it, via the matching cork sticks, which are provided. These are best used with boilies or nut baits where you want to add some buoyancy, such as critically balancing a bait or creating a snowman set-up from your bottom baits – or even just if you leave your pop-ups at home by mistake! The narrowest diameter drill is designed to drill a hole through hard baits that can’t be pierced using a baiting needle, or certainly not without splitting them. It is perfect for things such as air-dried boilies and pellets, and will bore a hole that can then be used to thread the hookbait onto your hair. The end of the Bait Drill features a small spike which can be inserted exactly where you want to make a hole, and will ensure the drill doesn’t slip, and is designed in such a way that it reduces the chances of splitting the bait whilst in use. The Bait Drill has a black and green ergonomically designed handle to allow you to get a good grip for precision drilling. Each pack contains one Bait Drill and up to six cork sticks depending on size. Spare cork sticks in 6mm, and 8mm are also available, and are sold in packs of 10.