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11ER40UNK20 - Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 40 |
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Description
Carmex Thread Turning External Insert is a precision cutting insert designed for external threading operations. Built for engineers, machinists, and shop technicians, it delivers accurate thread forms across the UNC, UNF, UNEF, and UNS standards using a single, versatile insert. It’s well-suited for everything from simple repair work to more demanding production tasks, all with a right-hand threading orientation for straightforward setup.
- Universal thread standard coverage: Supports UNC, UNF, UNEF, and UNS threads with one insert, reducing tool changes and simplifying inventory while maintaining consistent thread accuracy across multiple standards.
- Right-hand threading optimization: Specifically designed for right-hand threads, ensuring predictable cutting direction, clean finishes, and easy compatibility with common lathes and CNC machines.
- Triangular laydown geometry: The laydown triangular design provides stable engagement and efficient chip control, delivering reliable performance and consistent thread profiles across a range of materials and applications.
Whether you’re equipping a busy production line or performing on-demand threading in maintenance and repair tasks, this Carmex insert helps you complete threads quickly and accurately. The combination of broad compatibility, orientation-specific design, and stable cutting geometry supports steady throughput, reduces rework, and delivers dependable results across basic to demanding threading jobs.
Part Numbers
- Protool Part Number
- 11ER40UNK20
- 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.
