'Thread Mill, Helical, Internal or External, M12, Thread Size M12-1.25, Pitch 1.25mm, End Mill Material Carbide, Flutes 4, Length of Cut 0.8070 In., Overall Length 3-1/2 In., TiAlN, Shank Dia. 3/8 In., Thread Type Metric, Nomenclature TM, For Use With -, Application All Types of Metals, Composites and Tough-to-Machine Materials'