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Carmex Thread Turning Internal and External Insert - UN (UNC,UNF,UNEF,UNS) - Neutral - 22UIR/L4UNBMA
| Thread Type | Internal and External |
| Thread Direction | Neutral |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 4 |
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Description
The Carmex Thread Turning Insert delivers dependable internal and external threading performance. These high-quality laydown triangular inserts are designed to cover the majority of thread standards in use today, including UNC, UNF, UNEF, and UNS. The neutral grade 22UIR/L4UNBMA configuration is built to handle a wide range of applications, from basic tasks to more demanding jobs.
- Broad UNC/UNF/UNEF/UNS compatibility: Designed to cover the majority of thread standards with a single insert, reducing tool changes and simplifying inventory.
- Laydown triangular design with multiple cutting edges: Provides stable, efficient cuts, longer tool life, and consistent thread quality across a range of materials.
- Internal and external threading capability: One insert handles both internal and external threads, increasing versatility while the neutral grade design helps deliver stable, reliable performance across common materials.
Using this insert simplifies threading workflows: a single tool handles most thread forms, cutting setup time and minimizing tool swaps. The result is cleaner, more consistent threads, faster throughput, and improved reliability across a variety of projects—whether you’re production machining, maintenance, or hobbyist threading tasks.
Part Numbers
- Protool Part Number
- 22UIR/L4UNBMA
- 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.
