Whiteside 1959 Rabbeting Router Bit. Handy bit for a wide variety of rabbeting tasks. Carbide tipped. Double flute. This bit comes with a B2 (3/16" ID x 3/8" OD) bearing. Whiteside Machine Company - Claremont, North Carolina. Specifications SH = Shank Size. CL = Cutting Length. CD = Cutting Depth. LD = Large Diameter. 1/2" SH x 1" CL x 3/4" CD x 1-7/8" LD Model: 1959