IVY Classic 10862 3/16-Inch Radius Core Box Carbide Router Bit, 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. 1/4-inch alloy-steel shank is tempered for strength. Anti-Kickback design ensures constant chip removal WIDTH of cut (W): 3/8-inch, cutting depth (D): 3/8-inch, overall length (L): 1-9/16-inch, radius of curve (R): 3/16-inch, sturdy reusable pouch