CMT 827.627.11 Ovolo Bit, 1/2-Inch Radius, 1/2-Inch Shank 1-1/2-Inch Diameter, 3/4-Inch Cutting Length, 2-1/4-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.