Vermont American 23136 5/8-Inch Radius Carbide Tipped Roundover and Bead Router Bit, 2-Inch Ball Bearing 2-Flute 1/4-Inch Shank Use to create decorative edging and drop-leaf table joints. Create beading profiles with corner round bits by exchanging the 1/2-Inch bearing with a 3/8-Inch bearing (included with bit). Carbide tipped. 1/4-Inch shank. Use to create decorative edging and drop-leaf table joints. Carbide tipped. 1/4-Inch shank.