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11ER27UNK20 - 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 | 27 |
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Description
The Carmex Thread Turning External Insert (Right Hand, UN configurations UNC, UNF, UNEF, UNS) with part code 11ER27UNK20 is a precision cutting insert designed for external thread turning. Its laydown triangular geometry is built to cover a wide range of thread standards with a single insert, simplifying tooling and setup for many common tasks.
Ideal for engineers, machinists, and hobbyists alike, this insert delivers reliable performance from basic to demanding threading jobs. It works with standard holders and requires minimal setup, helping you move from setup to cutting with confidence.
- Broad thread-standard compatibility: Covers UNC, UNF, UNEF, and UNS external threads with one insert, reducing tool changes and inventory while delivering consistent results across standard thread sizes.
- Rigid laydown triangular geometry for smooth cuts: The triangular laydown design stabilizes the cutting action, minimizes chatter, and improves chip control for cleaner threads and longer insert life.
- Right-hand orientation and easy setup: Specifically designed for right-hand threads, it mounts quickly in standard toolholders, ensuring secure seating and reliable performance from the first cut.
This insert helps you streamline threading work by delivering repeatable, accurate results with fewer passes and less rework. Its durable geometry supports a broad spectrum of materials and applications, helping your shop boost productivity while maintaining high-quality thread finishes.
Part Numbers
- Protool Part Number
- 11ER27UNK20
- 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.
