Now you can make extra-large architectural crown moldings with your table-mounted router. Our new extender bit enables you to make unique crown moldings in every type of wood. You're No longer limited to the small selection of crown moldings at the lumber dealer. This specially designed bit works in conjunction with either our vertical or horizontal crown molding Bits allowing you to make crown moldings up to 4-1/2" Wide. Bevel back edges, cutting off 45° excess, with one of our Chamfer bits, #54410, diameter (D) 1-1/4, Radius (r) 7/16, cutting Height (B) 2-3/8, Shank (D) 1/2, overall length (L) 4, R1 3-15/16, flutes 2, 54410 carbide Tipped reversible crown molding extender 7/16 radius x 1-1/4 dia x 2-3/8 x 1/2 inch Shank