Please log in here to access all benefits, including promotional discounts and faster checkouts.
Carmex Thread Turning Internal Insert - UNJ (UNJC UNJF UNJEF UNJS) - Right Hand - 16IR14UNJK20
| Thread Type | Internal |
| Thread Direction | Right Hand |
| Thread Form | UNJ (UNJC UNJF UNJEF UNJS) |
| Pitch | 14 |
Learn more about Klarna
Compatible holders
The ones our customers buy most.
Description
The Carmex Thread Turning Internal Insert is a precision tool designed for internal threading tasks using UNJ thread forms. This model is the right-hand variant (model 16IR14UNJK20) with a laydown triangular geometry that delivers stable cutting and reliable chip control for consistent thread profiles.
Compatible with UNJ, UNJC, UNJF, UNJEF, and UNJS standards, it covers a wide range of applications—from straightforward internal threads to more demanding profiles—making it a versatile choice for shops, engineers, and hobbyists alike.
- Versatile UNJ family compatibility: Supports UNJ, UNJC, UNJF, UNJEF, and UNJS thread forms, enabling a single insert to handle multiple projects and reduce tool inventory.
- Laydown triangular geometry for stable cutting: The triangular, laydown design provides improved chip control and consistent thread quality across a variety of materials and conditions.
- Right-hand orientation for consistent results: Designed for right-hand threads, ensuring predictable cutting action and compatibility with common machining setups.
This internal thread turning insert helps you complete threaded components efficiently with reliable performance across basic to demanding tasks, supporting steady throughput and reliable results in everyday manufacturing and hobbyist projects.
Part Numbers
- Protool Part Number
- 16IR14UNJK20
- 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.
