Amana Tool 45700 V Groove 2-Flute Carbide Tipped Router Bit, 1/4-Inch Shank Cutting diameter 3/8-Inch 90-Degree angle 3/4-Inch cutting height 1/4-Inch shank, 2 flute. Carbide tipped, industrial quality. 90-Degree V groove bit is for decorative purposes and is not intended for 'miter-folding', etc.