CMT 827.754.11 1-Inch Radius, 1/2-Inch Shank 2-1/2-Inch Diameter, 1-5/16-Inch Cutting Length, 2-13/16-Inch Overall Length. Made of super-strength steel to enhance durability. Create unusual grooves and veins, as well as clean roundover and bead edges. 2 SinterHip Carbide Cutting Edges for precision cutting and durability. Anti-kickback design to work safely.