A double quarter-round profile is produced by this tool. The depth-of-cut setting determines whether or not a fillet is formed at the top. Switching from the standard pilot bearing to the optional 3/8" Bearing introduces a fillet at the bottom of the profile. Use in a handheld or table-mounted router.#54136, diameter (D) 1-1/8, Radius (r) 5/32, cutting height (B) 1/2, shank (D) 1/4, overall length (L) 2, replacement bearing 47706, flutes 2, 54136 carbide Tipped classical molding 5/32 radius x 1-1/8 dia x 1/2 x 1/4 inch shank