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Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 22ER12UN2MK20
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 12 |
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Description
Our Carmex Thread Turning External Insert is designed to deliver reliable external threading on right-hand threads across a broad range of UN thread standards. Specifically built to work with UNC, UNF, UNEF, and UNS forms, this insert (model 22ER12UN2MK20) helps machinists tackle a wide variety of projects with a single, versatile tool.
These inserts combine a premium laydown triangular geometry with straightforward setup, enabling efficient threading from simple to demanding applications. They are recognized worldwide for consistency and performance, making them a dependable choice for both shop floors and on-site work.
- Broad thread standard compatibility: Works with UNC, UNF, UNEF, and UNS forms, reducing the need to stock multiple inserts and simplifying changeovers.
- Optimized for right-hand external threading: Delivers predictable, smooth cuts and reliable engagement across common right-hand threading tasks.
- Triangular laydown geometry for stable cutting: Provides consistent chip formation and dependable results across a wide range of applications.
Whether you're equipping a general machining operation or handling occasional precision threading jobs, this insert helps you complete tasks more efficiently, with fewer tool changes and dependable, repeatable results.
Part Numbers
- Protool Part Number
- 22ER12UN2MK20
- 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.
