Description: High-grade welding, stable quality, high efficiency. Using for kinds of woodworking. Totally enclosed and lubricated . Carbide Tipped - Micro grain grade provides increased strength and utmost resistance. Two bearings make work much easier. Specification: Material: Alloy Color: Yellow Shank Diameter: Approx. 6.35mm / 0.25inch Bearing Diameter: Approx. 25.4mm / 1inch Bearing High: Approx. 38mm / 1.5inch Overall Length: Approx. 86mm / 3.39inch Package Includes: 1 Piece of Woodworking Milling Cutter Note: Please allow 1-3mm error due to hand test