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Carmex Thread Turning Internal Insert - NPT - Right Hand - 11IRB18NPTBMA

Carmex Thread Turning Internal Insert - NPT - Right Hand - 11IRB18NPTBMA

SKU:11IRB18NPTBMA

Carmex Thread Turning Internal Insert is a precision tool designed for internal threading tasks, optimized for NPT right-hand applications. It belongs to our industry-leading range of thread turn... Read more ↓
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Thread TypeInternal
Thread DirectionRight Hand
Thread FormNPT
Pitch18
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£10.55
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

Carmex Thread Turning Internal Insert is a precision tool designed for internal threading tasks, optimized for NPT right-hand applications. It belongs to our industry-leading range of thread turning inserts and is built to cover a wide variety of thread standards, from simple to highly demanding work.

These high-quality, laydown triangular inserts are engineered to deliver reliable, consistent performance across a broad spectrum of threading needs. Their geometry and robust construction help maintain stable cuts and clean thread profiles in a range of materials.

  • Broad compatibility with thread standards: Designed to cover a wide range of thread forms, reducing the need for multiple tools and enabling quick, efficient setup for diverse projects.
  • Triangular laydown geometry for stability: Provides stable cutting action and effective chip control, helping to extend insert life and improve thread quality in challenging applications.
  • Internal NPT threading for right-hand operations: Specifically suited for internal right-hand NPT threads, enabling precise, repeatable results in tight bores and complex assemblies.

Together, these features translate to a dependable, easy-to-use solution that helps you streamline workflows, reduce setup time, and achieve consistent, accurate internal threads. Whether you're maintaining production output or tackling specialized projects, this insert supports reliable performance and long-term tool life.

Part Numbers

Protool Part Number
11IRB18NPTBMA
Brand
Carmex
Category
Thread Turning
Delivery

Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.

Returns

14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.

Technical Support

Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Trade Accounts

Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.

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.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Carmex Thread Turning Internal Inserts - BType - NPT - Right Hand

View full collection →

You are viewing 11IRB18NPTBMA. Click any other SKU to view its full details.

Product SKUThread TypeThread DirectionThread FormPitchInsert SizeGradePriceStock Order
11IRB18NPTBMA ViewingInternalRight HandNPT1811BMA£10.55 5 days
16IRB11.5NPTBMA InternalRight HandNPT11.516BMA£9.50 5 days
16IRB14NPTBMA InternalRight HandNPT1416BMA£9.50 5 days
16IRB18NPTBMA InternalRight HandNPT1816BMA£7.29 5 days
16IRB8NPTBMA InternalRight HandNPT816BMA£9.50 5 days

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