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Carmex Thread Turning External Insert - W (BSW BSF BSP BSB) - Right Hand - 27ER4.5WBMA

Carmex Thread Turning External Insert - W (BSW BSF BSP BSB) - Right Hand - 27ER4.5WBMA

SKU:27ER4.5WBMA

Carmex Thread Turning External Insert is a versatile threading solution designed for external turning tasks. Specifically engineered for right-hand threads, this insert covers the most common thre... Read more ↓
P
M
K
S
H
Thread TypeExternal
Thread DirectionRight Hand
Thread FormW (BSW BSF BSP BSB)
Pitch4.5
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£19.64
Prices shown ex. VAT
In Stock— only 3 left
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 is a versatile threading solution designed for external turning tasks. Specifically engineered for right-hand threads, this insert covers the most common thread standards used in production today, helping shops consolidate tools and simplify setup.

With its laydown triangular geometry, it’s built to handle a wide range of applications—from straightforward threading jobs to the most demanding components—without sacrificing reliability or consistency.

  • Broad thread-standard compatibility: Designed to cover the major standards (BSW, BSF, BSP, BSB) and common external threading needs, reducing tool changes and inventory complexity.
  • Right-Hand threading optimization: Optimized for right-hand threads to deliver dependable, predictable results in everyday turning operations.
  • Laydown triangular geometry for versatility: The laydown triangular insert geometry supports a broad range of tasks, from basic to demanding applications, with consistent engagement.

The Carmex external insert provides a reliable, adaptable threading solution that helps you streamline setup, reduce tool-switching downtime, and achieve dependable results across diverse external threading tasks. Whether you’re prototyping or producing high-volume parts, it supports steady workflow and consistent part quality.

Part Numbers

Protool Part Number
27ER4.5WBMA
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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