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Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 22ER7UNK20
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 7 |
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Description
The Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 22ER7UNK20 is a high‑quality external threading insert designed for turning threads on external workpieces. Its compact, laydown triangular geometry and compatibility with major thread standards make it a versatile choice for shop floors and job sites.
This insert is ideal for engineers, machinists, and hobbyists who need reliable performance across a broad range of threading tasks—from simple joins to demanding, precision threads. It leverages a proven geometry to deliver consistent results with straightforward setup.
- Broad thread standard compatibility: Compatible with UNC, UNF, UNEF, and UNS external thread standards, helping you cover most jobs with a single insert and reduce tool changes.
- Triangular laydown geometry for stability: Laydown triangle design provides steady engagement and efficient cutting, promoting smooth chip flow and uniform thread formation.
- Right-hand orientation for predictable cuts: Specifically designed for right-hand threading, ensuring consistent thread profiles and straightforward setup in common turning operations.
The Carmex 22ER7UNK20 insert helps you streamline threading workflows, minimize downtime, and achieve reliable, repeatable thread quality across a wide range of standards and materials. Its broad compatibility and durable geometry support smoother operations, fewer reworks, and improved overall productivity in machining shops, maintenance workflows, and DIY projects alike.
Part Numbers
- Protool Part Number
- 22ER7UNK20
- 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.
