IVY Classic 10856 3/8-Inch Radius Cove Carbide Router Bit with Ball Bearig, 1/4-Inch Shank, 1/Pouch Ideal for cutting plywood, composition board, hard wood and soft wood. Double fluted, C2 modified carbide ensures longest life and highest quality, diamond-honed for true cutting. Shielded ball bearing guide prevents burning and marring (replacement ball bearing: IVY Classic 10962) Anti-kickback design ensures constant chip removal and 1/4-inch alloy-steel shank is tempered for strength Width of Cut (W): 1-1/8-inch, Cutting Depth (D): 9/16-inch, Overall Length (L): 2-3/16-inch, Radius of Curve (R): 3/8-inch, Sturdy Reusable Pouch