Helical-Flute Thread Mills

Available574 products
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.

Exo-Coated Carbide Helical-Flute Thread Mills

Exo-Coated Carbide Helical-Flute Thread Mills
These helical-flute thread mills have an EXO coating, which is a multilayered TiAlN coating with a very smooth finish that provides better wear resistance than a standard TiAlN coating. EXO-coated thread mills can be used at high speeds and withstand high temperatures. Carbide thread mills offer excellent wear resistance, heat resistance, and hardness.

Inch + UNC + 3 Flute

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Inch + UNC + 4 Flute

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Inch + UNC + 5 Flute

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Inch + UNC + 6 Flute

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Inch + UNEF + 3 Flute

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Inch + UNF + 3 Flute

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Inch + UNF + 4 Flute

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Inch + UNF + 5 Flute

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Inch + UNF + 6 Flute

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Inch + UNS + 3 Flute

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Inch + UNS + 4 Flute

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Metric + Metric + 3 Flute

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Metric + Metric + 4 Flute

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Metric + Metric + 5 Flute

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Metric + Metric + 6 Flute

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Pipe + NPT + 3 Flute

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Pipe + NPT + 4 Flute

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Pipe + NPTF + 3 Flute

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Pipe + NPTF + 4 Flute

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TiAlN-Coated Carbide Helical-Flute Thread Mills

TiAlN-Coated Carbide Helical-Flute Thread Mills
The TiAlN coating on these helical-flute thread mills withstands high temperatures and protects the thread mills from wear when milling hard materials. The TiAlN coating allows the thread mills to be used at faster speeds than thread mills with a bright finish. These thread mills are made from carbide, which offers excellent wear resistance, heat resistance, and hardness.

Inch + UN + 2 Flute

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Inch + UN + 3 Flute

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Inch + UN + 4 Flute

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Inch + UN + 5 Flute

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Inch + UNC + 3 Flute

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Inch + UNC + 4 Flute

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Inch + UNC + 5 Flute

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Inch + UNF + 3 Flute

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Inch + UNF + 4 Flute

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Inch + UNF + 5 Flute

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Metric + Metric + 2 Flute

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Metric + Metric + 3 Flute

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Metric + Metric + 4 Flute

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Metric + Metric + 5 Flute

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Pipe + BSPP + 3 Flute

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Pipe + BSPP + 4 Flute

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Pipe + BSPP + 5 Flute

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Pipe + BSPT + 3 Flute

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Pipe + BSPT + 4 Flute

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Pipe + BSPT + 5 Flute

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Pipe + NPT + 3 Flute

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Pipe + NPT + 4 Flute

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Pipe + NPT/NPTF + 3 Flute

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Pipe + NPT/NPTF + 4 Flute

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Pipe + NPT/NPTF + 5 Flute

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Pipe + NPTF + 4 Flute

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AlTiN-Coated Carbide Helical-Flute Thread Mills

AlTiN-Coated Carbide Helical-Flute Thread Mills
These helical-flute thread mills have an AlTiN coating that provides better resistance to abrasion and high heat than a TiAlN coating. AlTiN-coated thread mills are used for milling hard and abrasive materials. Carbide thread mills offer excellent wear resistance, heat resistance, and hardness.

Inch + UN + 2 Flute

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Inch + UN + 3 Flute

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Inch + UN + 4 Flute

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Metric + Metric + 3 Flute

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Metric + Metric + 4 Flute

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Pipe + NPT + 3 Flute

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Pipe + NPT + 4 Flute

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Pipe + NPTF + 3 Flute

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Pipe + NPTF + 4 Flute

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WXS-Coated Carbide Helical-Flute Thread Mills

WXS-Coated Carbide Helical-Flute Thread Mills
These helical-flute thread mills have a WXS coating that protects the thread mill from wear and provides maximum heat resistance when milling nickel-based alloys and hardened steels with a Rockwell hardness of more than 50HRC. It is harder and has a higher oxidation temperature than a TiAlN coating. The thread mills are made from carbide, which offers excellent wear resistance, heat resistance, and hardness.

Inch + UNC + 3 Flute

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Inch + UNF + 3 Flute

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Metric + Metric + 3 Flute

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Bright Finish Carbide Helical-Flute Thread Mills

Bright Finish Carbide Helical-Flute Thread Mills
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.

Inch + UN + 2 Flute

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Inch + UN + 3 Flute

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Inch + UN + 4 Flute

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Metric + Metric + 3 Flute

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Metric + Metric + 4 Flute

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Pipe + NPT + 3 Flute

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Pipe + NPT + 4 Flute

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Pipe + NPTF + 3 Flute

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Pipe + NPTF + 4 Flute

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SS Finish Carbide Helical-Flute Thread Mills

SS Finish Carbide Helical-Flute Thread Mills
These helical-flute thread mills have an SS finish that provides a polished surface that's smoother than a bright-finish helical-flute thread mill. They are used for milling steels and other difficult-to-machine materials. Carbide thread mills offer excellent wear resistance, heat resistance, and hardness.

Inch + UNF + 3 Flute

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Metric + Metric + 3 Flute

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TiCN-Coated Carbide Helical-Flute Thread Mills

TiCN-Coated Carbide Helical-Flute Thread Mills
These thread mills have a TiCN coating that protects the thread mill from wear. They are made from carbide, which offers excellent wear resistance, heat resistance, and hardness.

Inch + UNC + 3 Flute

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EgiAs-Coated Carbide Helical-Flute Thread Mills

EgiAs-Coated Carbide Helical-Flute Thread Mills
The EgiAs coating on these drill bits resists oxidation at high temperatures and provides excellent hardness and heat resistance. The coating protects the bits from wear in high-speed drilling applications with steel, cast iron, and hardened steel with a Rockwell hardness of 35 to 50 HRC.

Inch + UNC + 4 Flute

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Inch + UNF + 4 Flute

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Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order.
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