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Carmex Thread Mills Carbide - Single Point - Metric - M1 x 0.25 - MT11

Carmex Thread Mills Carbide - Single Point - Metric - M1 x 0.25 - MT11

SKU:MTI03007C30.25ISOMT11

Carmex Thread Mills Carbide - Single Point is a precision internal-thread milling tool designed for small-diameter work. Built for CNC machining, it enables clean, accurate ISO M1 x 0.25 and 0-80... Read more ↓
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Thread FormMetric
SizeM1
Pitch0.25
Diameter (D)0.72
Flute Length (l)0.25
Shank Diameter (d)3
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£95.44
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Carmex Thread Mills Carbide - Single Point is a precision internal-thread milling tool designed for small-diameter work. Built for CNC machining, it enables clean, accurate ISO M1 x 0.25 and 0-80 UNF threads in tight spaces.

  • Thread milling type: Full-profile internal-thread mill designed for robust, accurate internal threading in hard-to-reach locations.
  • Supported thread sizes: ISO metric M1 x 0.25 and 0-80 UNF threads, covering ultra-small to fine-pitch applications.
  • Depth capacity: Thread depth up to 3.5 × Thread Diameter, depending on the profile, allowing deeper threads in a single pass where geometry permits.
  • Flute count: 3–4 flutes for efficient chip evacuation and stable cutting in constrained cavities.
  • Material and grade: Carbide construction with MT11 Ultra-fine sub-micron grade for high-precision performance.
  • Coating: Triple blue PVD coating to reduce wear, lower friction, and extend tool life in demanding materials.
  • Shank/interface: MT11 shank designed for secure fit and reliable alignment in compatible milling centers.
  • Application: Optimized for internal thread milling, delivering consistent thread profiles and tight tolerances on miniature features.

This tool pairings a rigid carbide composition with an advanced coating and a refined flute geometry to deliver precise internal threads with minimal runout. The MT11 Ultra-fine grade supports fine pitches and small diameters, while the triple blue PVD coating helps resist wear during extended cutting cycles. With a versatile depth capacity and multi-flute design, it’s well-suited for micro-threads in lightweight components, instrumentation housings, and other compact assemblies where reliable internal threading is critical.

Thread Form Metric
Size M1
Pitch 0.25
Diameter (D) 0.72
Flute Length (l) 0.25
Shank Diameter (d) 3
No of Flutes 3
Overall Length (L) 39
Thread Mill Style Single Point
Internal or External Internal
Coating MT11

What time are Protool open?

We are open Monday to Friday between 8:30am and 5pm.

Do you offer Free Next Day delivery?

Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.

We also offer the following:

  • Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
  • DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
  • Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
  • DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.

For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.

*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.

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Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
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Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
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Full Range: Carmex Carbide Thread Mills - Mini Type For Internal Thread - ISO (MTI)

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