Whiteside 2009A Round Over Router Bit. Useful for softening or rounding over exposed edges on furniture, toys, moldings, trim, table tops, and other edge treatments. Stops slivering and splintering. Carbide tipped. Two wing. This bit comes with a B3 (3/16" ID x 1/2" OD) bearing. Whiteside Machine Company - Claremont, North Carolina. Specifications SH = Shank Size. R = Radius LD = Large Diameter. CL = Cutting Length. 1/2" SH x 5/8" R x 1-3/4" LD x 1" CL Model: 2009A