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Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Left Hand - 22EL7UNK20
| Thread Type | External |
| Thread Direction | Left Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 7 |
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Description
Meet the Carmex Thread Turning External Insert for external threading across UNC, UNF, UNEF, and UNS standards. The left-hand 22EL7UNK20 triangular laydown insert delivers stable chip control and reliable performance across a wide range of materials and applications, from simple to demanding tasks.
- Universal thread compatibility: Works with UNC, UNF, UNEF, and UNS external thread standards, reducing the need to switch inserts and simplifying setup for mixed-thread jobs.
- Left-hand threading optimized: Specifically designed for left-handed thread profiles, ensuring smooth engagement and consistent results in challenging configurations.
- Durable triangular laydown geometry: Robust geometry provides steady chip control, longer insert life, and reliable performance across a variety of cutting conditions.
This insert helps you complete threaded work faster and with greater confidence. Its broad compatibility and durable design minimize tool changes, reduce rework, and support reliable thread quality across workshops, maintenance teams, and production environments.
Part Numbers
- Protool Part Number
- 22EL7UNK20
- 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.
