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Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 27ER4.5UNBMA
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 4.5 |
| Insert Size | 27 |
| Grade | BMA |
Learn more about Klarna
Carmex Thread Turning External Insert is a versatile cutting insert designed for external threading on UN standard threads. Crafted in a laydown triangular geometry, it delivers reliable performance across UNC, UNF, UNEF, and UNS applications with a right-hand cutting direction. This insert is built to stay stable under demanding threading tasks while maintaining consistent thread profiles.
- Universal UN thread compatibility: Works across UNC, UNF, UNEF, and UNS external threads, allowing you to tackle a wide range of common standards with a single insert and reducing tool-change downtime.
- Durable carbide with precise geometry: Engineered for long tool life and clean, accurate thread forms, even in tougher materials, delivering dependable results over many production cycles.
- Easy setup and secure seating: Designed for straightforward clamping and stable performance, helping you minimize setup time and maximize uptime on busy machine shops.
This insert supports efficient, repeatable thread turning from basic to demanding tasks, helping you achieve consistent thread quality and finished-work accuracy. By reducing the number of tool changes and providing reliable performance across multiple UN thread standards, it helps streamline workflows, shorten cycle times, and maintain high-quality results in both high- and low-volume production environments.
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 4.5 |
| Insert Size | 27 |
| Grade | BMA |
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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.
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