Solid carbide mills are crest-cutting. Metric are for internal threads only. This listing is for each. Technical Specification Item Thread Mill Type Straight, Internal Size M5 Thread Size M5-0.8 Pitch 0.80mm Cutting Dia. 0.140 End Mill Material Carbide Flutes 3 Length of Cut 0.3910 Overall Length 2-1/2 Finish Polished Shank Dia. 1/4 Thread Type Metric Nomenclature TM Application All Types of Metals, Composites and Tough-to-Machine Materials Cutter Dia. - Machining 0.1400 Drilling Tool Configuration Individual List Number TM Material - Machining Carbide Material Applications Composites, Hardened Materials, All Metals Measurement System Decimal Inch Number of Flutes 3 Material Solid Carbide