CMT 854.509.11 Bull Nose Bit, 1/2-Inch Shank, 1/2-Inch Radius, Carbide-Tipped 1-3/4-Inch Diameter, 1-5/8-Inch Cutting Length, 1-Inch Minor Cutting Length, 3-9/64-Inch Length For making the edges of stair treads, window sills, shelves and more Create an oval edge by using a bit with a bead diameter larger than the stock thickness Non-Stick Orange Shield Coating, Anti-Kickback Design, Equipped with Bearing 2 SinterHip Hi-Density Industrial Chrome Carbide cutting edges for long-lasting performance