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11ER24UNK20 - Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 24 |
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Description
Carmex Thread Turning External Insert - UN (UNC, UNF, UNEF, UNS) - Right Hand - 11ER24UNK20 is a versatile external thread turning insert designed to handle UNC, UNF, UNEF and UNS thread standards with a single tool. Built to support a wide range of applications—from basic threading tasks to the most demanding production runs—this insert helps you achieve consistent thread forms with minimal setup changes.
Ideal for engineers, machinists, maintenance teams, and fabricators who value reliable performance and predictable results across various materials and threading requirements.
- Universal UNC/UN thread compatibility: One insert covers UNC, UNF, UNEF, and UNS external threads, reducing tool changes and simplifying inventory for shops that run mixed-thread programs.
- Triangular laydown geometry for stable cutting: The laydown triangular shape delivers steady cutting action, smooth chip control, and consistent thread profiles across a broad range of sizes and materials.
- Right-hand orientation for dependable threading: Specifically configured for right-handed threads to produce accurate, repeatable results and reduce deviations in production runs.
This combination of versatility, geometry, and orientation means you can complete threaded parts faster, with fewer inserts swapped in and out, and with confidence you’ll achieve the thread accuracy your project demands—whether you’re building prototypes or running high-volume production.
Part Numbers
- Protool Part Number
- 11ER24UNK20
- 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.
