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Carmex Thread Turning Internal and External Insert - UN (UNC,UNF,UNEF,UNS) - Neutral - 22UIR/L4.5UNK20
| Thread Type | Internal and External |
| Thread Direction | Neutral |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 4.5 |
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Description
Carmex Thread Turning Internal and External Insert - UN (UNC,UNF,UNEF,UNS) - Neutral - 22UIR/L4.5UNK20 is a versatile indexable insert designed for both internal and external thread turning. It supports imperial thread standards (UNC, UNF, UNEF, UNS) and is built to be a practical, universal solution for engineers, machinists, and shop-floor buyers working across a wide range of parts.
Known worldwide for reliability, our thread turning inserts use a high-quality laydown triangular design that covers most thread standards in use today and handles a wide range of applications from basic to demanding threading tasks.
- Broad thread standard compatibility: Supports UNC, UNF, UNEF, and UNS, so you can tackle most imperial thread requirements with a single insert, reducing tool changes and inventory.
- Internal and external threading capability: Designed for both internal and external threading operations, enabling a single tool to cover multiple tasks and simplify setup.
- Durable laydown triangular geometry: The laydown triangular insert delivers stable cutting, smooth chip flow, and consistent results across a wide range of applications.
By choosing this Carmex thread turning insert, you gain an all-in-one solution that speeds setups, reduces downtime, and helps you achieve accurate, repeatable thread profiles. Its universal thread compatibility and dual-function capability streamline workflows for engineers, machinists, and hobbyists alike, delivering reliable performance from basic jobs to demanding productions.
Part Numbers
- Protool Part Number
- 22UIR/L4.5UNK20
- 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.
