Roman Carbide DC1827 Deluxe 1/2-Inch Rabbeting Set with 7 Bearings, 1/4-Inch Shank 1/4-Inch Shanks; 1/2-Inch Cutting Length Creates 1/8, 1/4, 5/16, 3/8, 7/16 and 1/2-Inch Rabbets Allows flush cuts Includes bearings, bushings, washers and screws 1/4-Inch shank diameter and 1/2-Inch cutting length