Please log in here to access all benefits, including promotional discounts and faster checkouts.

Carmex Thread Turning External Insert - UNJ (UNJC UNJF UNJEF UNJS) - Right Hand - 16ER11UNJK20

Carmex Thread Turning External Insert - UNJ (UNJC UNJF UNJEF UNJS) - Right Hand - 16ER11UNJK20

SKU:16ER11UNJK20

The Carmex Thread Turning External Insert is a versatile right-hand tool designed for external UNJ thread turning. Its laydown triangular geometry, coupled with compatibility across UNJC, UNJF, UN... Read more ↓
N
S
Thread TypeExternal
Thread DirectionRight Hand
Thread FormUNJ (UNJC UNJF UNJEF UNJS)
Pitch11
View all specifications ↓
Download Cutting Data
£9.86
Prices shown ex. VAT
5 days estimated lead time — subject to availability
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Carmex Thread Turning External Insert is a versatile right-hand tool designed for external UNJ thread turning. Its laydown triangular geometry, coupled with compatibility across UNJC, UNJF, UNJEF, and UNJS standards (model 16ER11UNJK20), covers a broad range of threading tasks—from routine to demanding—with a single, reliable solution.

  • Broad UNJ compatibility: Supports UNJ standards including UNJC, UNJF, UNJEF, and UNJS, enabling you to complete most threading jobs with one insert and reducing tool changes and inventory complexity.
  • Right-hand external threading design: Optimized for right-hand threads, providing smooth, predictable thread formation and consistent results in everyday workshop conditions.
  • Laydown triangular geometry for stable cutting: The triangular laydown geometry promotes stable cutting, efficient chip control, and a consistent thread finish across a wide range of materials.

With Carmex 16ER11UNJK20, you gain a dependable, flexible threading solution that simplifies inventory, reduces tool changes, and delivers consistent, defined threads across a broad range of materials and applications.

Part Numbers

Protool Part Number
16ER11UNJK20
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.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Complete Your Project

Tooling and consumables that work with this product.
All 22 →