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Carmex Thread Turning External Insert - UNJ (UNJC UNJF UNJEF UNJS) - Left Hand - 11EL18UNJBMA
| Thread Type | External |
| Thread Direction | Left Hand |
| Thread Form | UNJ (UNJC UNJF UNJEF UNJS) |
| Pitch | 18 |
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Description
Carmex Thread Turning External Insert - UNJ (UNJC UNJF UNJEF UNJS) - Left Hand - 11EL18UNJBMA is a precision threading insert engineered for external thread turning on UNJ standards. This insert is part of Carmex’s globally recognized range, designed to deliver reliable, repeatable cuts across a wide variety of materials and thread profiles.
- UNJ thread standard compatibility: Covers UNJC, UNJF, UNJEF, and UNJS, enabling you to tackle multiple thread profiles with a single insert and reducing tool changes.
- Left Hand threading design: Optimized geometry for left‑hand external threads, delivering stable cutting action and predictable, consistent results.
- Laydown triangular geometry for durability and finish: The laydown triangular insert shape promotes smooth chip flow, robust wear resistance, and reliable thread quality across diverse applications.
This insert is built to simplify your workflow: fewer tool changes, dependable performance from routine to demanding tasks, and consistent thread accuracy that helps your parts meet spec more reliably. Whether in a busy production environment or a precision shop, it supports faster setup, steady output, and improved overall results.
Part Numbers
- Protool Part Number
- 11EL18UNJBMA
- 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.
