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16EL1.0ISOK20 - Carmex Thread Turning External Insert - Metric - Left Hand
| Thread Type | External |
| Thread Direction | Left Hand |
| Thread Form | Metric |
| Pitch | 1 |
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Description
The Carmex Thread Turning External Insert is a metric, left-hand threading insert designed for external thread turning on lathes and CNC machines. It’s a versatile choice for shops handling standard and specialty metric threads, delivering clean, accurate results with dependable performance.
- Broad thread-standard coverage: Fits the majority of metric thread standards, so you can complete many threading tasks with a single insert and minimize tool changes.
- Robust laydown triangular geometry: Provides stable cutting action and reliable results across a broad spectrum of applications, helping reduce chatter and improve finish quality.
- Optimized for left-hand external threading: Specifically designed for metric left-hand threads, ensuring correct orientation and predictable cutting performance on external passes.
This combination supports faster setup, fewer insert changes, and consistent results that help your shop keep production moving—whether you’re producing new parts or repairing threads to meet tight tolerances.
Part Numbers
- Protool Part Number
- 16EL1.0ISOK20
- 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.
