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


Carmex Thread Turning Internal Insert - NPT - Right Hand - 11IR14NPTK20
| Thread Type | Internal |
| Thread Direction | Right Hand |
| Thread Form | NPT |
| Pitch | 14 |
Learn more about Klarna
Compatible holders
The ones our customers buy most.Description
The Carmex Thread Turning Internal Insert (NPT, Right Hand) is part of our industry-leading range of thread turning inserts, recognized worldwide. These high-quality laydown triangular inserts provide a versatile solution for the majority of thread standards in use today, and they can handle a wide range of applications—from basic to the most demanding tasks.
- Wide thread-standard compatibility: Designed to cover the majority of thread standards in use today, reducing the need to stock multiple inserts and simplifying procurement.
- Stable laydown triangular geometry: Provides a stable, consistent cutting action across a broad range of internal threading tasks for reliable performance.
- Versatile for basic to demanding tasks: Delivers dependable results across simple projects and tougher jobs, helping you complete NPT right-hand threads with confidence.
With this insert, you gain a reliable, adaptable threading solution that supports faster setup, fewer tool changes, and more consistent thread quality across projects. Its broad compatibility reduces downtime and inventory complexity while delivering predictable results—making it a smart choice for shops handling a mix of basic and demanding internal threading work.
Part Numbers
- Protool Part Number
- 11IR14NPTK20
- 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.



