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Carmex Thread Mills Solid Carbide - Internal Thread - UN (UNC UNF UNEF UNS) - 1/2 x 13 - MT7

SKU:MT10098D3213UNMT7

Carmex MT line solid carbide thread mills are engineered for precise internal threading, delivering reliable UNC/UNF/UNEF/UNS threads in a single setup. Designed for machinists who value efficien... Read more ↓
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Thread FormUN (UNC UNF UNEF UNS)
Size1/2
Pitch13
Diameter (D)9.8
Flute Length (l)32.2
Shank Diameter (d)10
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£133.36
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Carmex MT line solid carbide thread mills are engineered for precise internal threading, delivering reliable UNC/UNF/UNEF/UNS threads in a single setup. Designed for machinists who value efficiency and consistency, this 1/2 x 13 internal thread mill with MT7 shank is ready to elevate your threading workflow.

Carmex Thread Mills Solid Carbide internal thread tool

  • Solid carbide construction: Built for rigidity and wear resistance to maintain thread accuracy through tough materials and high-speed machining.
  • Internal thread milling: Specifically designed to cut internal threads in cavities and pre-assembled holes with clean, defined profiles.
  • Universal thread compatibility: Supports UN/UNC, UNF, UNEF, and UNS thread standards for versatile applications.
  • Thread size: Precisely features 1/2 x 13 internal thread capability for common connector and fastener applications.
  • MT7 shank: Compatible with standard MT7 toolholders for secure, repeatable tool seating and easy integration into existing rigs.
  • 3–5 flute design: Optimizes cutting action and chip evacuation, balancing speed, accuracy, and surface finish in a range of materials.
  • Efficient and cost-conscious: Aimed at delivering reliable threading performance with economical tooling costs per part.

This internal thread mill is ideal for machine shops and job shops tackling medium to high-volume threaded holes in metal parts. Its combination of carbide hardness, multi-flute geometry, and MT7 compatibility helps you achieve consistent thread quality, reduce cycle times, and simplify tooling inventory without sacrificing precision.

Thread Form UN (UNC UNF UNEF UNS)
Size 1/2
Pitch 13
Diameter (D) 9.8
Flute Length (l) 32.2
Shank Diameter (d) 10
No of Flutes 4
Overall Length (L) 73
Thread Mill Style Standard
Internal or External Internal
Coating MT7

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 interested in providing a good service making us the customer feel valued.
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honest about stock and prices are competitive.
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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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Buying experience
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 Solid Carbide Thread Mills - UN (UNC UNF UNEF) - For Internal Thread (MT)

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