Overall Diameter: 1-1/8"Overall Length: 2-1/4"Cutting Edge Length: 11/16"Shank: 1/4"Bearing Diameter: 16mmRadius: 3/16"Adds Attractive Edging On New Pieces And Matching Many Older Molding Cuts For Remodeling WorkMicrograin Carbide Tips Provide Superior Wear Resistance And Long LifeCompact Ball-Bearing Pilot Guides Bit Along Edge Of Material