Frued Quadra Cut Router Bits are the secret to flawless edge profiles with no reworking required. Standard two cutter router bit design leaves a rough finish on delicate materials where as the Freud 4 cutter Quadra Cut design offers a revolutionary patented design allowing for smoother finishes without the hassles of reworking the material. This 4 cutter design includes 2 large cutters that shear upward and two smaller cutters that shear downward to produce a splinter free flawless finish. Kit Includes: ½" shank 5/16" Round Over ½" shank ½" Round Over ½' shank ¼" Roman Ogee