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Carmex Spiral Mill Threading Insert - NPT - H23-11.5NPTMT7

SKU:H23-11.5NPTMT7

The Carmex Spiral Mill Threading Insert – NPT is a versatile, high-performance cutting insert designed for precision NPT threading and broader milling tasks. It’s built for a wide range of shops—... Read more ↓
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M
K
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ApplicationThreading
Thread FormNPT
Internal or ExternalInternal & External
Insert SizeH23
Pitch11.5
Holder CodeSRH23…
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£48.14
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

The Carmex Spiral Mill Threading Insert – NPT is a versatile, high-performance cutting insert designed for precision NPT threading and broader milling tasks. It’s built for a wide range of shops—from compact machining centers handling small components to heavy-duty production environments—delivering smooth cuts at higher feed rates to reduce overall cycle times.

With MT7 Sub-Micron Grade inserts and a Titanium Nitride multi-layer coating (ISO K10–K20), this tool combines wear resistance with a reliable finish across materials. Its spiral flute geometry and a unique clamping method support efficient indexing and long tool life, making it a dependable choice for threading, end milling roughing, and finishing in diverse applications.

  • Smooth, high‑feed threading: Spiral design enables fast cutting and reduced cycle times while maintaining clean, accurate NPT threads.
  • Flexible insert capacity with reliable indexing: Toolholders accommodate 1 to 9 inserts in a compact diameter, with a clamping system that ensures optimal indexability and stable operation.
  • Durable MT7 Sub‑Micron TiN coating: Sub-micron grade inserts with TiN multilayer coating deliver wear resistance across materials (ISO K10–K20) for consistent performance in threading and milling.

This insert is designed to deliver consistent results across a variety of materials and applications, helping you maintain tight tolerances, reduce downtime, and improve overall workflow. Whether you’re producing small, high-precision parts or tackling demanding milling tasks, it provides dependable performance, smooth finishes, and a clear path to efficient, repeatable results.

Application Threading
Thread Form NPT
Internal or External Internal & External
Insert Size H23
Pitch 11.5
Holder Code SRH23…
Fig 2
Thread Size 1 - 2

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 Spiral Mill Threading Inserts - NPT

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You are viewing H23-11.5NPTMT7. Click any other SKU to view its full details.

Product SKUInsert SizePitchPriceStock Order
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