Please log in here to access all benefits, including multibuy discounts and faster checkouts.

Carmex Thread Mills Carbide - Through Coolant (Flutes) - NPT - 1/2 - 3/4 x 14 - MT7

SKU:MTZ16155D2214NPTMT7

The Carmex MTZ Through-Coolant Carbide Thread Mills are engineered for precise NPT threading in through-holes, delivering coolant directly to the cutting edge for cleaner, more consistent results.... Read more ↓
P
M
K
N
S
Thread FormNPT
Size1/2 - 3/4
Pitch14
Diameter (D)15.5
Flute Length (l)22.7
Shank Diameter (d)16
View all specifications ↓
Download Cutting Data
£236.58 £315.44
Prices shown ex. VAT
5 days estimated lead time — subject to availability
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

The Carmex MTZ Through-Coolant Carbide Thread Mills are engineered for precise NPT threading in through-holes, delivering coolant directly to the cutting edge for cleaner, more consistent results. Designed for shop floors that demand reliability, chip control, and the ability to work without an external coolant line.

  • Through-Coolant Flutes: Coolant is guided through the flute channels to the cutting edge, enhancing heat management and chip evacuation for steadier, more stable cuts.
  • MT7 Shank: Robust MT7 Morse taper shank provides secure, repeatable seating on compatible machines for stable threading operations.
  • NPT Threading Range: Optimized for 1/2 in to 3/4 in NPT threads at 14 TPI, ideal for standard hydraulic and pneumatic fittings.
  • Thread Milling in Through Holes: Tailored for threading through holes with direct-chip removal, reducing debris buildup and improving internal thread quality.
  • Carbide Construction: Durable carbide body delivers high hardness and wear resistance for long tool life in demanding metalworking environments.
  • Compatibility with Limited-Coolant Setups: Effective even on machines without external coolant systems thanks to integrated through-flute coolant delivery.

These features translate to tangible benefits: precise, repeatable NPT threads with clean chip control, longer tool life under rigorous production conditions, and the flexibility to process through-holes on a wider range of machines. The through-coolant design minimizes heat at the cutting edge, enabling efficient feeds and improved surface finish on threaded components. For hydraulic, pneumatic, and fluid-handling assemblies, the Carmex MTZ thread mills offer a reliable, high-performance solution that reduces downtime and supports consistent manufacturing outcomes.

Thread Form NPT
Size 1/2 - 3/4
Pitch 14
Diameter (D) 15.5
Flute Length (l) 22.7
Shank Diameter (d) 16
No of Flutes 4
Overall Length (L) 101
Thread Mill Style Standard + Coolant (Flutes)
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 Internal Coolant Through The Flutes (MTZ)

View full collection →

You are viewing MTZ16155D2214NPTMT7. Click any other SKU to view its full details.

Product SKUSizePitchFlute LengthReachOverall LengthPriceStock Order
MTZ08076C1027NPTMT7 1/82710.810.864£181.61
£136.21
5 days
MTZ1010D1618NPTMT7 1/4 - 3/81916.216.273£210.25
£157.69
5 days
MTZ16155D2214NPTMT7 Viewing1/2 - 3/41422.722.7101£315.44
£236.58
5 days