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Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Left Hand - 11EL36UNBMA
| Thread Type | External |
| Thread Direction | Left Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 36 |
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The ones our customers buy most.Description
Carmex Thread Turning External Insert for UN thread standards offers a versatile solution for turning external threads on a wide range of materials. Compatible with UNC, UNF, UNEF, and UNS threads and available in a left-hand configuration (11EL36UNBMA), this high‑quality laydown triangular insert is designed to cover the majority of today’s thread standards with reliable, repeatable results.
Whether you’re producing fasteners, repairing threads, or prepping components in maintenance and repair work, this insert provides steady cuts, consistent depth control, and durable performance across basic to demanding applications. The left-hand option helps you optimize workflows in shops that frequently work with left-handed threads.
- Universal thread standards compatibility: Designed to handle UNC, UNF, UNEF, and UNS external threads, reducing tool changes and simplifying inventory so you can set up and start cutting faster.
- Stable cutting geometry for consistent finishes: Laydown triangular geometry delivers rigid engagement, minimizes chatter, and produces predictable thread quality across a variety of materials.
- Durable carbide for long tool life: Built to withstand tough machining environments, delivering durable performance and reducing downtime through extended usable life.
This insert helps you streamline production, deliver reliable thread accuracy, and keep workflow moving smoothly—from initial setup to final pass—so you can meet tight tolerances with confidence.
Part Numbers
- Protool Part Number
- 11EL36UNBMA
- 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.



