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Carmex Thread Mills Solid Carbide - With Through Coolant - NPT - 1 - 2 x 11.5 - MT7

SKU:MTB2020D2911.5NPTMT7

Carmex MTB solid carbide thread mills with through coolant are engineered for precise internal NPT threads, delivering reliable performance in demanding machining environments. Designed for shops... Read more ↓
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Thread FormNPT
Size1 - 2
Pitch11.5
Diameter (D)20
Flute Length (l)29.8
Shank Diameter (d)20
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£196.18 £261.57
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Carmex MTB solid carbide thread mills with through coolant are engineered for precise internal NPT threads, delivering reliable performance in demanding machining environments. Designed for shops that value chip evacuation, longer tool life, and consistent thread accuracy, this tool keeps your workflow smooth from start to finish.

  • Solid Carbide Construction: High-hardness, wear-resistant material that maintains sharpness and precision through multiple cycles in tough metals.
  • Through-Coolant Bore: Coolant flows inside the tool to the cutting edge, aiding chip removal and reducing heat build-up for cleaner threads and longer tool life.
  • MT7 Morse Taper Shank: Compatible with standard CNC spindles for secure, stable engagement and minimal runout.
  • NPT Thread Milling Capability: Specifically designed to create internal National Pipe Thread profiles with reliable thread form and dimensional accuracy.
  • Optimized Cutting Geometry: Flute and edge design tailored to produce clean, consistent thread surfaces and stable, predictable cutting behavior.

This through-coolant thread mill addresses two critical needs in precision threading: effortless chip evacuation in tight bore openings and extended tool life through effective cooling. The result is more dependable cycle times, reduced tool changes, and better surface finish on internal NPT threads. Ideal for fittings, manifolds, and components where tight tolerances and reliable internal threads matter, this Carmex MTB tool helps you achieve repeatable results in a range of materials while maintaining efficiency and cost-effectiveness.

Thread Form NPT
Size 1 - 2
Pitch 11.5
Diameter (D) 20
Flute Length (l) 29.8
Shank Diameter (d) 20
No of Flutes 4
Overall Length (L) 105
Thread Mill Style Standard + Coolant
Internal or External Internal & External
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.

★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
Bill
★★★★★
first place we look
honest about stock and prices are competitive.
Phil
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
Graham
★★★★★
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.
Jeremy

Full Range: Carmex Solid Carbide Thread Mills - NPT - With Through Coolant (MTB)

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