These sets include the most popular profiles for Rounding Over bits and Decorative Edge bits * TiCo Hi-Density Carbide to maximize bit life and material finish * All bits contain Freud´s patented Quadra-Cut 4 cutter design for flawless finish with no rework; all three router bits have a 1/2"" shank * Freud #38-104, #38-362 and #38-614 * Perma-SHIELD coating reduces heat and pitch build-up from rust