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16EL28UNBLU - Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Left Hand
| Thread Type | External |
| Thread Direction | Left Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 28 |
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Description
The Carmex Thread Turning External Insert is a versatile, laydown triangular insert designed to machine external threads across a wide range of standards. It is suitable for UNC, UNF, UNEF, and UNS threads and is optimized for left-hand applications. Whether you’re tackling straightforward, quick-turn tasks or more demanding threading work, this insert provides a reliable solution.
Recognized as part of an industry-leading range, this insert is built to deliver consistent performance and long tool life in real-world shop environments.
- Broad thread compatibility: Designed to handle UNC, UNF, UNEF, and UNS external thread standards with a single insert, reducing tool changes and stocking needs.
- Triangular laydown geometry: Laydown triangular geometry provides stable cutting engagement across a wide range of thread forms, delivering consistent results and smoother chip flow.
- Left-hand threading readiness: Specifically configured for left-hand threading applications, ensuring precise alignment and reliable performance on these tasks.
This insert helps you streamline threading workflows by covering multiple standards with one tool, minimizing setup time and inventory, while delivering predictable, repeatable results that improve fit in assemblies and reduce rework. Built for durability and consistent performance, it supports higher productivity and lowers downtime in both production and maintenance environments.
Part Numbers
- Protool Part Number
- 16EL28UNBLU
- 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.
