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Carmex Thread Turning External Insert - 55 Degree Partial - Right Hand - 27ERQ55BMA

Carmex Thread Turning External Insert - 55 Degree Partial - Right Hand - 27ERQ55BMA

SKU:27ERQ55BMA

Carmex Thread Turning External Insert, 55 Degree Partial - Right Hand (27ERQ55BMA) is a versatile cutting insert designed for external thread turning. Part of our globally recognized laydown tria... Read more ↓
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M
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Thread TypeExternal
Thread DirectionRight Hand
Thread Form55 Degree Partial
Pitch5.5-6.0 (4.5-4)
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£19.64
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

Carmex Thread Turning External Insert, 55 Degree Partial - Right Hand (27ERQ55BMA) is a versatile cutting insert designed for external thread turning. Part of our globally recognized laydown triangular insert range, it provides a practical solution for a wide range of thread standards used today. Whether you’re setting up a basic threading operation or handling more demanding applications, this insert is built to perform reliably.

Ideal for engineers, machinists, and shop floor teams, it combines straightforward usability with dependable performance. The 55° geometry and right-hand orientation help you achieve clean, accurate threads with minimal setup fuss, while its partial design supports flexible use across different tooling setups.

  • Extensive thread-standards coverage: Designed to provide a solution for the majority of thread standards in use today, reducing tool changes and simplifying inventory.
  • 55° laydown triangular geometry: Creates a stable cutting action with effective chip control, helping produce consistent thread profiles across a range of materials.
  • Partial insert design for efficient use: Optimized for quick setups and versatile use across jobs, delivering reliable results without unnecessary waste.

This insert is engineered to support repeatable, high-quality threading on a variety of components, helping you improve workflow, reduce downtime, and achieve dependable results from project to project.

Part Numbers

Protool Part Number
27ERQ55BMA
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.

Full Range: Carmex Thread Turning External Inserts - Partial Profile 55° - Right/Left Hand

View full collection →

You are viewing 27ERQ55BMA. Click any other SKU to view its full details.

Product SKUThread TypeThread DirectionThread FormPitchInsert SizeGradePriceStock Order
16ELAG55BMA ExternalLeft Hand55 Degree Partial0.5-3.0 (48-8)16BMA£9.50 5 days
16ELG55BMA ExternalLeft Hand55 Degree Partial1.75-3.0 (14-8)16BMA£7.29 5 days
16ERA55BMA ExternalRight Hand55 Degree Partial0.5-1.5 (48-16)16BMA£9.50 5 days
16ERAG55BMA ExternalRight Hand60 Degree Partial0.5-3.0 (48-8)16BMA£9.50 In Stock
16ERG55BMA ExternalRight Hand55 Degree Partial1.75-3.0 (14-8)16BMA£9.50 In Stock
22ELN55BMA ExternalLeft Hand55 Degree Partial3.5-5.0 (7-5)22BMA£10.69 5 days
22ERN55BMA ExternalRight Hand55 Degree Partial3.5-5.0 (7-5)22BMA£13.93 5 days
27ELQ55BMA ExternalLeft Hand55 Degree Partial5.5-6.0 (4.5-4)27BMA£15.10 5 days
27ERQ55BMA ViewingExternalRight Hand55 Degree Partial5.5-6.0 (4.5-4)27BMA£19.64 5 days

Complete Your Project

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