Check the listing for details. 5/16-24UNF Internal Mill - Thread Solid Carbide. Condition: Used. Listed at 25.90 USD. Used Features and Benefits Solid carbide provides better rigidity than high speed steel. It is extremely heat resistant and used for high speed applications on cast iron, nonferrous materials, plastics and other tough-to-machine materials. Titanium aluminum nitride (TiAlN) has a higher hardness than TiN and TiCN. It is extremely heat resistant and used for high speed applications on stainless steels, nickel and titanium alloys. Specs Material Solid Carbide Flute Direction Right Hand Thread Standard UNC Threads Per Inch 24 Thread Size (Inch) 5/16 Thread Type Internal Number of Flutes 3 Cutting Diameter (mm) 6.6 Shank Diameter (mm) 8 Cutting Depth (mm) 28 Overall Length (mm) 64 Finish/Coating TiAlN Through Coolant NonThrough Coolant Shipping Time:International Airmail Shipping normally takes 12-22 working days for delivery (Rarely packages may be delayed due to some country's customs and security policies (e. g. Brazil). Please be patient if this happens)