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11EL0.5ISOBMA - Carmex Thread Turning External Insert - Metric - Left Hand
| Thread Type | External |
| Thread Direction | Left Hand |
| Thread Form | Metric |
| Pitch | 0.5 |
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Introducing the Carmex Thread Turning External Insert - Metric - Left Hand - 11EL0.5ISOBMA. This industry-leading insert uses a laydown triangular geometry to deliver reliable external threading performance across a wide range of metric thread standards. Designed for engineers, machinists, and shop-floor technicians, it provides a versatile solution for everything from routine threading tasks to demanding precision work.
- Broad compatibility with metric left-hand thread standards: Works across the majority of common thread standards, reducing the need for multiple inserts and simplifying setup for diverse jobs.
- Triangular laydown geometry for stable, efficient cutting: The laydown shape delivers solid support and improved chip control, helping deliver smooth cuts and longer tool life with fewer re-cuts.
- Reliable performance from basic to demanding applications: Consistent thread form and finish across a wide range of tasks, enabling quicker throughput and less downtime on busy production lines.
This insert is a practical, high-quality option for anyone who regularly turns external threads. By covering a broad spectrum of metric left-hand standards with a single, dependable tool, it helps streamline workflows, reduce tool changes, and deliver dependable results across varied applications.
Part Numbers
- Protool Part Number
- 11EL0.5ISOBMA
- 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.










