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Thread Mills

Thread mills cut a thread using helical interpolation. Helical interpolation involves moving three axes simultaneously. The X and Y axes move in a circular motion while the Z axis moves in a linear motion. This allows the same thread mill to cut both right and left-hand threads and to produce a variety of thread sizes (of the same pitch). All thread mills are made from premium submicron carbide and are stocked with and without an ALTiN+ coating. They are ground on state-of-the-art CNC tool-and-cutter grinders and have been engineered for high performance. Programming assistance is available.
straight flute thread mills

External - UNJ

These straight flute thread mills have the root radius that is required for the external "UNJ" thread.

Single profile thread mills

SPTM - UN

Single profile thread mills will cut internal and external threads in a range of thread sizes with minimum side cutting pressure.

Single profile thread mills

SPTM -  External UNJ

Single profile thread mills that cut external UNJ threads in a range of thread sizes with minimum side cutting pressure.

Long reach thread mills

TMLR - UN

Long reach thread mills have three teeth ( four for the larger sizes ) and a helical flute that excel in internal deep threads and hard-to-cut materials.

Straight flute thread mills

Straight Flute - UN

Straight flute thread mills come in a large variety of sizes and are crest cutting for internal threads only.

Staggered tooth thread mills

Staggered Tooth - UN

Staggered tooth thread mills will cut internal and external threads. Every other tooth removed in a staggered pattern for reduced side cutting pressure.

helical flute thread mills

15° Helical Flute - UN

The 15° helical flute thread mills are non-crest cutting for internal threads only. The helical flutes distribute the side cutting pressure.

 

helical flute thread mills 30 degree

30° Helical Flute - UN

The 30° helical flute thread mills will cut internal and external threads. The helical flutes distribute the side cutting pressure.

NPT thread mills

NPT / NPTF

NPT thread mills come in straight, helical and staggered tooth design. They will cut both internal and external threads. NPTF are for dryseal applications.

straight flute thread mills

BSPP / BSPT

These straight flute thread mills have a 55° thread profile and cut the British Standard Pipe Parallel (BSPP) and the British Standard Pipe Taper (BSPT).

Single profile thread mills

SPTM - Metric

Single profile thread mills will cut internal and external threads in a range of thread sizes with minimum cutting pressure.

Long reach thread mills

TMLR - Metric

Long reach thread mills have three teeth ( four for the larger sizes ) and a helical flute that excel in internal deep threads and hard to cut materials.

Straight flute thread mills

Straight Flute - Metric

Straight flute thread mills come in a large variety of sizes and are crest cutting for internal threads only.

helical flute thread mills 15 degree

15° Helical Flute - Metric

The 15° helical flute thread mills are non-crest cutting for internal threads only. The helical flute distributes the side cutting pressure.

30 degree helical flute thread mills

30° Helical Flute - Metric

The 30° helical flute thread mills will cut internal and external threads. The helical flute distributes side cutting pressure.

Acme thread mills

SPTM - Acme / Stub Acme

Acme thread mills come in both acme and stub acme configurations. Different tools are available to cut the internal and external thread.

Trademarks are the properties of their respective owner(s).

November 2024, January 2022, October 2020, updated May 2019 , May 2018, October  2016, October 2011 CSS, November 2008, May 2000

The descriptions, illustrations, specifications, dimensions, and part numbers are subject to change without notice.

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