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16ER9UNK20 - 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 | 9 |
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Description
Carmex Thread Turning External Insert — UN (UNC, UNF, UNEF, UNS) — Right Hand — 16ER9UNK20 — is a versatile solution for turning external threads. This laydown triangular insert is built to cover the majority of today’s thread requirements with dependable performance across basic to demanding applications.
- Broad UN thread compatibility (UNC/UNF/UNEF/UNS): Covers the major external thread standards in a single insert, reducing the need for multiple tools and simplifying setup while delivering consistent results across different thread types.
- Laydown triangular geometry for stable cutting and chip control: The laydown design promotes stable engagement, smoother chip flow, and a clean thread form, helping to improve surface finish and reduce finishing passes.
- Right-hand orientation for reliable external thread turning: Specifically configured for right‑hand threads, ensuring predictable cutting action and dependable performance in standard turning operations.
This insert helps you streamline tooling, shorten setup times, and deliver consistent thread quality across UNC/UNF/UNEF/UNS external threads—from quick prototypes to high-volume production—so your projects stay efficient and reliable.
Part Numbers
- Protool Part Number
- 16ER9UNK20
- 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.
