Amana Tool 54299 Base Moulding Ogee Edge Detail 2-Flute Carbide Tipped Router Bit with Ball Bearing Guide, 1/2-Inch Shank Cutting diameter 1-53/64-Inch 3/8-Inch cutting height 3/8-Inch upper radius, 5/16-Inch lower radius 1/2-Inch shank, 2-flute Carbide tipped, industrial quality