FEATURES:Take your Kreg Joinery projects to the next level by creating custom?plugs from any wood species.?Fits into any?Kreg Jig??(K3, K4, or K5)Hardened-steel drill guides provide reliable drilling and feature a lifetime warrantyWorks with standard Plug Cutting Bit (included)Works with?HD?and?Micro?Bits (sold separately)Bit tip shears wood fibers cleanly to create a smooth, consistent plugSpecial fluting reduces heat and friction for better plugs and longer bit lifeOpen design ensures easy plug release