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16IR64UNK20 - Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand
| Thread Type | Internal |
| Thread Direction | Right Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 64 |
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Description
The Carmex Thread Turning Internal Insert is a right-hand, laydown triangular cutting insert designed to efficiently produce internal threads in UNC, UNF, UNEF, and UNS standards. Built for reliability, it’s a versatile choice for a wide range of projects—from simple threaded holes to more demanding applications. This insert is part of an industry-leading range that’s recognized worldwide for consistency and performance.
- Broad thread-standard compatibility: Covers UNC, UNF, UNEF, and UNS with a right-hand orientation, reducing the need for multiple inserts and simplifying your tool inventory.
- Stable laydown triangular geometry: Delivers rigid, chatter-free cutting for smoother chip control and cleaner internal thread profiles, even in harder materials.
- Durable, reliable performance across applications: Designed to handle everything from basic to demanding threading tasks with repeatable results and long tool life.
Used in a variety of fabrication and machining workflows, this insert helps you complete internal threading projects with fewer tool changes, less rework, and more consistent results. Whether you’re setting up for a quick turnaround or running high-m-ix workloads, the Carmex Thread Turning Internal Insert supports efficient setup, dependable performance, and a clean, accurate thread finish.
Part Numbers
- Protool Part Number
- 16IR64UNK20
- 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.
