Check the listing for details. Spiral Router Bit 1/4"x3/8"x1/4"x2" 1 Flute Solid Carbide CNC End Mill. Condition: New. Listed at 14.97 USD. Cutting Diameter: 1/4"Shank Diameter: 1/4"Cutting Length: 3/8"Total Length: 2"Cut Type: Upcut (Right Hand)Number of Flutes: 1 FluteCutting Hardness: HRC44-46Helix Angle: 30 DegreePackage Included: 1pcs x Spiral Router Bit CNC End MillSolid carbide milling bit offers high hardness, excellent wear resistance, excellent heat resistance, durability, and good cutting performance. Uncoated cnc mill bit features the base substrate without any additional coatings, good for a wide range of applications.Up-cut spiral flutes lift chips upward and away from the cutting area, providing excellent chip evacuation. The upward cutting action also produces a clean, smooth surface finish by minimizing tearing, great for woodworking or materials that tear easily.