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11IL24UNK20 - Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Left Hand
| Thread Type | Internal |
| Thread Direction | Left Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 24 |
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The ones our customers buy most.Description
The Carmex Thread Turning Internal Insert is a precision cutting tool designed for internal threading tasks. It is optimized for left-hand applications and supports a broad range of thread standards, including UNC, UNF, UNEF, and UNS, providing a flexible solution for both routine and demanding work.
- Broad thread-standard coverage: One insert handles UNC, UNF, UNEF, and UNS internal threads, reducing tool changes and simplifying inventory while keeping your workflow efficient.
- Left-hand threading optimization: Specifically engineered for left-hand internal threads, delivering stable cutting action and predictable results in a single setup.
- Triangular laydown geometry with central mounting hole: The laydown triangular design distributes cutting forces for improved wear resistance and stable cutting, while the central hole enables secure mounting for reliable performance in challenging jobs.
Designed to streamline your internal threading operations, this insert helps you finish parts faster with consistent thread quality. It minimizes downtime from tool changes, supports higher throughput, and reduces rework by delivering repeatable results from basic to demanding applications. Model 11IL24UNK20 offers a trusted, versatile solution for makers, machinists, and maintenance professionals working with UNC/UNF/UNEF/UNS threads in left-hand configurations.
Part Numbers
- Protool Part Number
- 11IL24UNK20
- 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.



