Helical, Thread Mill, UN, Carbide, Bright (Uncoated), 0.4000 in

These helical-flute thread mills have a bright finish that provides a smooth, polished surface. They are suitable for general purpose applications at slower speed in nonferrous materials. The thread mills are made from carbide, which offers excellent wear resistance, heat resistance, and hardness. Helical-flute thread mills have spiral flutes that distribute the chip load as the thread mill removes material to cut threads into an existing hole or onto the external surface of a part. They provide a smoother cut than straight-flute or single-profile thread mills and are used to create threads on tough or thin-walled materials. Helical-flute thread mills can create internal threads of the same pitch in a range of hole diameters, eliminating the need to change tools when threading multiple holes of different sizes. Thread mills are only usable in CNC machines that have helical interpolation capability. This listing is for each. Overall Length (In.) : 3.5 Type : Helical, Internal or External Cutting Dia. (In.) : 0.400 Overall Length : 3-1/2 Length of Cut : 1.1200 Nomenclature : TM Cutting Dia. : 0.400 Thread Type : Inch Finish : polished Item : Thread Mill For Use With : - End Mill Material : Carbide Shank Dia. : 1/2 Size : 1/2 Flutes : 4 Application : All Types of Metals, Composites and Tough-to-Machine Materials Length of Cut (In.) : 1.120 Thread Size : 1/2-20 Pitch : 20 TPI Drilling Tool Configuration : Individual Material Applications : Composite, Steel Number of Flutes : 4 Material - Machining : Carbide Measurement System : Fractional Inch Cutter Dia. - Machining : 0.4000 List Number : TM Shank Length : 2.3800 Primary Material Application : All Materials Flute Type : Helical Cutter Dia. : 0.4000 Series : SPTM Finish - Machining : Bright (Uncoated) Thread Standard : UN Country of Origin (subject to change) : United States