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


16ER14UNK20 - Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 14 |
Learn more about Klarna
Compatible holders
The ones our customers buy most.Description
Carmex Thread Turning External Insert is a universal, right‑hand insert designed for external threading on lathes. These laydown triangular inserts deliver broad compatibility with UNC, UNF, UNEF, and UNS thread forms, making them a versatile choice for shops that run a mix of standard threads. Built to handle a wide range of applications—from everyday production tasks to more demanding threading work—without frequent tool changes.
Code 16ER14UNK20 denotes the specific geometry and grade, ensuring reliable performance in common threading operations. The insert is designed for secure seating in standard tool holders and consistent, clean thread profiles across a variety of materials.
- Broad Thread Compatibility: Supports UNC, UNF, UNEF, and UNS thread forms, enabling you to tackle a wide range of jobs with a single insert and reducing tool-change time.
- Durable Carbide with Efficient Geometry: Laydown triangular design plus wear‑resistant carbide deliver smooth cutting, strong chip control, and long insert life for consistent thread quality.
- Right‑Hand Ready and Easy Setup: Optimized for right‑hand threading operations and standard holders, providing predictable results and fast, hassle-free changeovers.
This insert helps you streamline workflows, improve throughput, and maintain high-precision threads across multiple standards. With dependable wear resistance and a geometry tuned for reliable cutting action, it supports both simple and demanding threading tasks, giving you confidence to complete projects on time and to specification.
Part Numbers
- Protool Part Number
- 16ER14UNK20
- 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.



