1/4" 4Fl SE Carbide End Mill Go to amazon.com Related posts Top 16 milling bits carbide FeatureDiam. Inches: 1/4"Shank Diam.: 1/4"Length of Flutes: 3/4"Overall Length: 2 1/2"Will fit into many routers. DescriptionMade in USA. Single End Center Cutting. 4 Flute. Solid Micrograin Carbide. Style E700.