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11EL24UNJBMA - Carmex Thread Turning External Insert - UNJ (UNJC UNJF UNJEF UNJS) - Left Hand
| Thread Type | External |
| Thread Direction | Left Hand |
| Thread Form | UNJ (UNJC UNJF UNJEF UNJS) |
| Pitch | 24 |
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Description
Carmex Thread Turning External Insert - Left Hand (Part 11EL24UNJBMA) is a precision cutting insert designed for external thread turning on lathes and turning centers. It supports UNJ thread standards and variants including UNJC, UNJF, UNJEF, and UNJS, making it a versatile choice for left‑hand threading tasks.
This insert is part of Carmex's industry‑leading thread turning range. The laydown triangular geometry is engineered to cover the majority of thread standards in use today, enabling you to tackle everything from basic to highly demanding threading applications with a single, reliable tool.
- Broad UNJ compatibility: Supports UNJC, UNJF, UNJEF, UNJS and standard UNJ threads, reducing the need for multiple inserts and simplifying your tooling inventory.
- Laydown triangular geometry for smooth cutting: Optimized shape delivers stable cuts, effective chip control, and consistent thread profiles across a variety of materials.
- Left-hand threading specialization: Specifically designed for left‑hand external threads, enabling reliable performance and faster setup in everyday turning operations.
Using the Carmex Thread Turning External Insert - Left Hand helps streamline threading workflows, minimizes tool‑change downtime, and delivers consistent, accurate UNJ threads across different materials and applications—enhancing overall productivity in your turning operations.
Part Numbers
- Protool Part Number
- 11EL24UNJBMA
- 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.
