Designed for routing architectural and furniture moldings and trim, these bits should be used in a 2+ horsepower, table-mounted router, and many should be run at reduced speed. Although most have ball-bearing guides, #54286, guiding the cuts with a fence is recommended, diameter (D): 1-3/4, radius (r): 23/64, cutting height (B): 1, shank (D): 1/2, overall length (L): 3, replacement bearing: 47712, flutes: 2, 54286 carbide Tipped special interest picture frame molding 23/64 radius x 1-3/4 dia x 1 inch x 1/2 shank