Please log in here to access all benefits, including promotional discounts and faster checkouts.
11ER20UNK20 - 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 | 20 |
Learn more about Klarna
Compatible holders
The ones our customers buy most.
Description
Carmex Thread Turning External Insert for UNC/UNF/UNEF/UNS external threads, Right Hand, model 11ER20UNK20, is a high-precision cutting insert designed to simplify external threading tasks. Built as part of a globally recognized range, this laydown triangular insert delivers dependable performance across a wide array of thread standards.
Its laydown triangular geometry and universal thread standards coverage make it a versatile choice for engineers, machinists, buyers, and hobbyists who want reliable results without juggling multiple inserts.
- Wide thread-standard compatibility: Covers UNC, UNF, UNEF, and UNS external threads, reducing the need for multiple inserts and enabling quick setup on mixed jobs.
- Laydown triangular geometry: Provides stable cutting engagement for consistent threading across tasks and offers multiple usable edges for extended tool life.
- Right-hand orientation for reliable performance: Specifically configured for right-hand threading work, helping you achieve predictable results across both basic and demanding applications.
This insert helps you streamline your threading workflow: fewer tool changes, consistent thread quality, and predictable tool life across a broad range of materials. By choosing a single, versatile insert, you can complete more jobs faster and with fewer interruptions, improving overall productivity and shop efficiency.
Part Numbers
- Protool Part Number
- 11ER20UNK20
- 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.
