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16EL32UNK20 - Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Left Hand
| Thread Type | External |
| Thread Direction | Left Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 32 |
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Description
The Carmex Thread Turning External Insert – Left Hand (16EL32UNK20) is designed for versatile left‑hand threading across UNC/UN thread standards. This insert is part of our globally recognized, industry‑leading range of thread turning inserts, built to handle both simple and demanding jobs with consistent results.
- Wide UNC/UN thread compatibility: Supports UNC, UNF, UNEF and UNS thread standards, enabling reliable threading across most common sizes with a single insert family.
- Left‑hand threading capability: Specifically engineered for left‑hand threads, giving you flexibility to tackle left‑handed applications without swapping inserts.
- Triangular laydown geometry for stability: The laydown triangular design provides stable engagement, better chip control, and longer insert life for demanding or high‑volume production.
With broad UNC/UN compatibility, dedicated left‑hand support, and the stable, durable geometry of the triangular insert, you can complete more work with fewer tool changes, achieve reliable thread quality, and extend tool life—leading to smoother production runs and improved overall efficiency.
Part Numbers
- Protool Part Number
- 16EL32UNK20
- 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.
