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

Carmex Thread Turning External Insert - Round - Right Hand - 22ER4RDK20

Carmex Thread Turning External Insert - Round - Right Hand - 22ER4RDK20

SKU:22ER4RDK20

The Carmex Thread Turning External Insert – Round – Right Hand – 22ER4RDK20 is part of our industry-leading range of thread turning inserts, recognized worldwide for reliable threading performance... Read more ↓
N
S
Thread TypeExternal
Thread DirectionRight Hand
Thread FormRound
Pitch4
Insert Size22
GradeK20
Download Cutting Data
£13.52
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

The Carmex Thread Turning External Insert – Round – Right Hand – 22ER4RDK20 is part of our industry-leading range of thread turning inserts, recognized worldwide for reliable threading performance. The laydown triangular insert geometry covers the majority of thread standards you’ll encounter, delivering versatile capability for a wide range of jobs from basic to demanding applications.

  • Wide thread compatibility: Designed to address the majority of common thread standards, reducing the need to stock multiple inserts and speeding up setup and changeover.
  • Durable triangular laydown geometry: Robust geometry provides stable cutting and consistent thread profiles across many materials, helping minimize chatter and improve finish quality.
  • Trusted quality from a leading brand: Engineered to tight tolerances with durable construction, delivering reliable performance in both production environments and professional workshops.

Using this insert helps you streamline threading operations, shorten cycle times, and maintain consistent results across a broad range of tasks. It supports smoother workflows, fewer tool changes, and dependable performance that you can rely on for everyday production as well as more demanding threading projects.

Thread Type External
Thread Direction Right Hand
Thread Form Round
Pitch 4
Insert Size 22
Grade K20

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.

★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
Bill
★★★★★
first place we look
honest about stock and prices are competitive.
Phil
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
Graham
★★★★★
Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Jeremy

Complete Your Project

with tools we think you'll like