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11ER28UNJBMA - Carmex Thread Turning External Insert - UNJ (UNJC UNJF UNJEF UNJS) - Right Hand
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | UNJ (UNJC UNJF UNJEF UNJS) |
| Pitch | 28 |
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Description
Carmex Thread Turning External Insert for UNJ threads is a precision cutting solution designed for external threading on right-hand UNJ standards. It’s engineered to cover UNJC, UNJF, UNJEF, and UNJS, making it a versatile choice for shops handling multiple thread sizes and applications. The laydown triangular geometry delivers stable cutting performance, efficient chip evacuation, and consistent results across a broad range of threading tasks.
Whether you’re an engineer, a buyer, a machine operator, or a hobbyist, this insert simplifies setup and supports reliable, repeatable thread formation—from straightforward to demanding production jobs.
- Broad UNJ compatibility: Designed to handle UNJC, UNJF, UNJEF, and UNJS external threads, reducing the need for multiple inserts and simplifying installation and job planning.
- Laydown triangular geometry: Provides a stable cutting edge with efficient chip control for clean, accurate threads and extended insert life through balanced load distribution.
- Right-hand orientation for reliable results: Optimized for right-hand threads, delivering consistent feed, smoother operation, and reduced risk of deflection during cutting.
This combination of broad compatibility, stable cutting geometry, and right-hand optimization helps you speed setup, minimize tool changes, and achieve dependable thread quality across a wide range of projects.
Part Numbers
- Protool Part Number
- 11ER28UNJBMA
- 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.
