Woodline USA WL-2066 66-Piece 1/2-Inch Shank Tungsten Carbide Master Router Bit Set 66-piece 1/2-inch shank master set is the ultimate collection of router bits for new and experienced woodworkers Vast selection of profiles maximizes usability on the job site for years to come Industrial carbide-tipped bits; rugged 1/4-inch shank Euro anti-kickback design Lifetime warranty