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16ER56UNBLU - 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 | 56 |
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Description
The Carmex Thread Turning External Insert – UN (UNC, UNF, UNEF, UNS), Right Hand, 16ER56UNBLU is a precision cutting insert designed for external thread turning on UN thread standards. It’s built for engineers, machinists, and production shops seeking reliable performance across a broad range of threading tasks.
Its triangular laydown geometry helps steady engagement and offers smooth chip control for consistent thread quality across various materials.
- Broad UN thread compatibility: Works with UNC, UNF, UNEF, and UNS external threads, simplifying inventory and reducing setup time by allowing you to use one insert for multiple standards.
- Stable, laydown triangular geometry: Delivers steady engagement and efficient chip control, promoting a smooth, high-quality thread finish across a range of materials.
- Proven versatility for basic to demanding tasks: Designed for reliability in everyday threading work and tougher applications, delivering consistent results job after job.
This insert helps you streamline threading work by covering multiple thread standards with a single, reliable tool. Its stable cutting geometry reduces chatter, improving surface finish and reducing the number of passes required. With proven performance across a broad range of tasks, you can trust it to deliver repeatable results, minimize downtime, and keep production moving.
Part Numbers
- Protool Part Number
- 16ER56UNBLU
- 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.
