The reverse cove-and-bead bit, which has the cove coming off the bearing, produces the reverse of the classical cove and bead. Radii of both cove and bead are identical. Use in a handheld or table-mounted router., #49214 diameter (D) 1-3/8, radius (r) 1/4, cutting Height (B) 7/8, shank (D) 1/2, overall length (L) 2-5/8, replacement bearing 47704, flutes 2, 49214 carbide Tipped double Roman Ogee 1/4 radius x 1-3/8 dia x 7/8 x 1/2 inch Shank