Whiteside 1024A Straight Plywood Router Bit. Made to cut dados the same width as undersized dimensional plywood. This 31/64" router bit is for 1/2" plywood. Carbide tipped. 1/4" Shank. 2 flute. Whiteside Machine Company - Claremont, North Carolina. Specifications SH = Shank Size. CD = Cutting Diameter. CL = Cutting Length. OAL = Overall Length. 1/4" SH x 31/64" CD x 3/4" CL x 2-1/4" OAL Model: 1024A