USA Made End Mill Kodiak Cutting Tools KCT131063 USA Made Solid Carbide End Solid Carbide End Mill 4 End Mill Kodiak Cutting Tools KODIAK132009 USA Ade Solid End Style: Square. Flat on Shank: No. Flute Length: 1.13. Manufacturer Part Number: HEC312S4113. Material: Solid Carbide. Number of Flutes: 4. Shank Size: .3125 The 1/2 inch length of cut gives you plenty of working surface, while the 2 inch overall length provides good stability in your collet. The 5/16 inch shank diameter works with standard tool holders without any issues 1/2 Inch Diameter Solid Carbide End Mill - Single End 1/2 Shank 1-1/4 Length of Cut 3 Overall Length 4 Flute Carbide - Single End., Made In the USA , 1/2 Shank diameter , 1-1/4 Length of Cut , 3 Overall Length , 4 Flutes