Technical Specification Item Thread Mill Type Extra Long Reach, Helical Flute, Internal Threads Thread Size 5/16-24 Pitch 24 TPI Cutting Dia. 0.238 End Mill Material Carbide Flutes 3 Length of Cut 0.8500 Overall Length 2-1/2 Finish TiAlN Shank Dia. 1/4 Thread Type UN Application For Use On Titanium, Nickel-Based Alloys, Cast Iron, Stainless Steel And Steel Cutter Dia. - Machining 0.2380 Drilling Tool Configuration Individual List Number TMLR Material - Machining Carbide Material Applications Cast Iron, Nickel, Stainless Steel, Steel, Titanium Measurement System Decimal Inch Number of Flutes 3 Material Solid Carbide This listing is for each.