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Carmex Thread Turning External Insert - 55 Degree Partial - Right Hand - 16ERG55K20

Carmex Thread Turning External Insert - 55 Degree Partial - Right Hand - 16ERG55K20

SKU:16ERG55K20

The Carmex Thread Turning External Insert - 55 Degree Partial - Right Hand - 16ERG55K20 is a cutting insert designed for external thread turning on lathes. Its 55-degree profile and right-hand cu... Read more ↓
N
S
Thread TypeExternal
Thread DirectionRight Hand
Thread Form55 Degree Partial
Pitch1.75-3.0 (14-8)
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£7.74
Prices shown ex. VAT
5 days estimated lead time — subject to availability
Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
Klarna
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Carmex Thread Turning External Insert - 55 Degree Partial - Right Hand - 16ERG55K20 is a cutting insert designed for external thread turning on lathes. Its 55-degree profile and right-hand cutting edge support efficient, accurate threading across a wide range of standards.

The laydown triangular geometry provides versatile performance across basic to demanding applications, making it a reliable choice for engineers, machinists, and shops that value consistent results.

  • Broad thread standard compatibility: The laydown triangular design covers a wide range of thread standards, reducing the need for multiple inserts and simplifying inventory.
  • 55° partial right-hand geometry: Optimizes chip flow and delivers clean, accurate threads with stable cutting conditions, improving surface finish and reducing rework.
  • Durable carbide construction: Built to resist wear in tough materials, delivering long tool life and reducing downtime on busy production lines.

With this insert, you can streamline threading tasks, lower tool change frequency, and achieve consistent thread quality across a range of materials. The design supports quick setup, repeatable results, and long service life, helping you complete jobs faster and with less risk of scrap or rework.

Part Numbers

Protool Part Number
16ERG55K20
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

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