Description: Made with industrial micrograin carbide, provides increased strength and utmost resistance, for multiple use, smooth and detailed finish. Fits for professional electric drill, bench drill. Suit to rout out density board, hardwood, MDF, particle board, plywood, etc.. Baked on heat resistant coating prevents build-up of sawdust, resin, and pitch. CNC compatible. Specification: Overall Length: 4.297" Cutter Diameter: 3/8" Cutter Depth: 3" Shank Diameter: 1/4"(6.3mm) Shank length: 1.213" Material: Carbide Alloy Package Includes: 1 Piece straight router bit