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Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 22ER6UNK20
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 6 |
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Carmex Thread Turning External Insert – UN series (UNC, UNF, UNEF, UNS) in Right Hand orientation is a versatile threading solution designed for turning external threads with a single, reliable insert. Ideal for machinists, engineers, buyers, and maintenance professionals, this laydown triangular insert delivers consistent thread forms across a broad range of standard profiles, making it a practical choice for both routine and demanding jobs.
Whether you’re setting up a new production run or performing on-site repairs, this insert provides dependable performance from light finishing to deeper thread engagements. Its broad compatibility with the most common UNC/UN standards means you can minimize tool changes and keep your workflow efficient without sacrificing thread accuracy.
- Broad UNC/UN standard compatibility: Cuts external threads in UNC, UNF, UNEF, and UNS, so a single insert covers most common thread forms, reducing tool changes and stocking costs.
- Laydown triangular geometry for stability and finish: The triangular laydown design delivers a stable cutting action that helps produce consistent thread forms and smoother finishes across a wide range of materials.
- Designed for reliability across basic to demanding applications: Built to deliver long tool life with predictable, repeatable results from light finishing through heavier cuts, minimizing downtime and rework.
This insert helps you complete threaded joints more efficiently, supports a streamlined tooling setup, and delivers reliable results across standard thread forms. With its proven geometry and broad compatibility, it’s a dependable choice for everyday threading tasks and higher-demand operations alike.
Part Numbers
- Protool Part Number
- 22ER6UNK20
- 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.



