Freud 20-102 Two-Flute Carbide V-Grooving Router Bit, 3/8 Inch Dia. x 5/16 InchHighlights: Overall Diameter: 3 8 inch Angle: 90 degree Shank Diameter: 1 4 inch Carbide Height: 5 16 inch Total Length: 1 3 4 inch 2 flute Cuts all composition materials, plywoods, hardwoods, and softwoods Ideal for making signs and adding decorative accents to furniture and plaques Freud's "V" grooving bits are designed to cut deep or shallow "V" grooves Use on CNC and other automatic routers as well as hand held and table mounted portable routers.