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11IR24UNK20 - Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand
| Thread Type | Internal |
| Thread Direction | Right Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 24 |
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The Carmex Thread Turning Internal Insert is a precision cutting insert designed for internal threading tasks. Built for right-hand threads and compatible with UNC, UNF, UNEF, and UNS standards, it’s a versatile choice for machining shops, maintenance teams, and hobbyists tackling a range of threading jobs. Product code: 11IR24UNK20.
- Broad thread standard coverage: Works with UNC, UNF, UNEF, and UNS threads, reducing the need to stock multiple inserts and cutting tools for different projects.
- Laydown triangular design for stability: The three‑sided geometry distributes cutting forces evenly, delivering consistent thread forms with reduced chatter and smoother finishes.
- Durable carbide for long tool life: Made from high‑quality carbide with precise grinding, it resists wear in challenging materials to extend tool life and maintain dimensional accuracy.
This internal thread turning insert helps streamline production and repair work by delivering reliable, repeatable results across a broad range of materials and applications. Its right-hand orientation and universal thread compatibility support faster setup, fewer tool changes, and improved throughput, so you can complete threading tasks with confidence and consistency.
Part Numbers
- Protool Part Number
- 11IR24UNK20
- 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.



