5/8'', Double Flute, Straight Bit, Achieve General Stock Removal With A Smooth Finish, Freud Straight Bits Cut SmootherThan Other Bits Because Of The Precise Shear & Hook Angles, End Of Bit Relief Allows For Fast Plunging, Cuts All Composite Materials, Plywood, Hardwoods & Softwoods, Use On CNC & Other Automatic Routers As Well As Hand-Held & Table-MountedPortable Routers.