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16ER11UNK20 - 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 | 11 |
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Description
Carmex Thread Turning External Insert for UNC, UNF, UNEF and UNS thread standards, right-hand orientation, 16ER11UNK20, sits at the core of our industry‑leading range of thread turning inserts. This triangular laydown insert is designed to handle a wide spectrum of external threading tasks, giving you a single, reliable solution for many imperial thread forms. It’s built for professionals and hobbyists alike who need consistent, repeatable results with minimal setup.
From simple, everyday threading to demanding production work, this insert delivers dependable performance across a variety of materials and applications. Its durable laydown geometry provides stable cuts, smoother finishes, and longer tool life, helping you stay productive in busy shops without compromising thread quality.
- Broad UNC/UNF/UNEF/UNS compatibility: Covers the major imperial thread standards in one versatile insert, reducing tool changes and inventory without sacrificing performance.
- Triangular laydown geometry for stable, precise cuts: Provides strong support during cutting, minimizes chatter, and delivers consistent thread finishes across a range of materials.
- Right‑hand orientation for reliable, predictable results: Optimized for right‑hand threads and standard setups, making setup quick and results dependable in common machining workflows.
This insert helps you complete external threading tasks efficiently, improve workflow continuity, and achieve reliable, repeatable results across multiple thread standards. With its robust design and broad compatibility, it’s a practical, confidence‑driven choice for any shop focused on precise, durable threading performance.
Part Numbers
- Protool Part Number
- 16ER11UNK20
- 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.
