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

Carmex Thread Turning Internal Insert - Trapez - Right Hand - 16IR3TRK20

Carmex Thread Turning Internal Insert - Trapez - Right Hand - 16IR3TRK20

SKU:16IR3TRK20

Carmex Thread Turning Internal Insert — Trapez geometry, Right Hand, 16IR3TRK20. This insert is part of Carmex's industry-leading range of thread turning inserts, recognized worldwide for reliabi... Read more ↓
N
S
Thread TypeInternal
Thread DirectionRight Hand
Thread FormTrapez
Pitch3
View all specifications ↓
Download Cutting Data
£8.89
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

Carmex Thread Turning Internal Insert — Trapez geometry, Right Hand, 16IR3TRK20. This insert is part of Carmex's industry-leading range of thread turning inserts, recognized worldwide for reliability and consistency in threading operations.

Designed for engineers, machinists, maintenance technicians, and even hobbyists, it tackles a wide range of internal threading tasks. The trapez geometry and right-hand orientation help deliver stable, precise cuts across many thread standards—from simple to demanding jobs.

  • Broad thread-standard coverage: Designed to address the majority of thread standards in use today, reducing tool changes and simplifying inventory so you can complete more work with fewer interruptions.
  • Stable cutting performance: Engineered for reliable results across basic to demanding applications, delivering smooth operation and consistent thread quality from start to finish.
  • Durable, precision-ground geometry: Built for long tool life and repeatable results, maintaining accuracy and finish quality across multiple runs and materials.

With the Carmex Thread Turning Internal Insert, you gain a dependable tool that helps you finish internal threads with confidence. Its broad compatibility reduces changes between jobs, while the stable cutting performance and durable geometry deliver clean, consistent results across varying materials and production runs. Built to last, this insert supports reliable performance in both high-volume production and precision work.

Part Numbers

Protool Part Number
16IR3TRK20
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 35 →