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Carmex Thread Turning External Insert - NPT - Right Hand - 16ER27NPTK20
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | NPT |
| Pitch | 27 |
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The ones our customers buy most.Description
The Carmex Thread Turning External Insert - NPT - Right Hand - 16ER27NPTK20 is a high-quality external insert designed for threading operations. It is part of Carmex's industry-leading thread turning range, recognized worldwide.
These laydown triangular inserts are designed to provide a solution for the majority of the thread standards available today and can handle a wide range of applications—from the basic to the most demanding ones.
- Extensive thread standards coverage: Designed to address the majority of thread standards available today, reducing compatibility concerns across common threading tasks.
- Triangular laydown geometry for versatile performance: The laydown triangular insert design supports stable cutting action and consistent results across a wide range of applications.
- NPT Right Hand compatibility: Specifically suited for NPT threads with right-hand orientation, supporting accurate engagement and reliable threading performance.
Designed for versatility and dependable performance, this insert helps you complete threading tasks more efficiently. It supports reliable results across basic to demanding applications, enabling smoother workflows and greater confidence in every job.
Part Numbers
- Protool Part Number
- 16ER27NPTK20
- 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.



