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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 ↓
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Thread TypeExternal
Thread DirectionRight Hand
Thread FormW (BSW BSF BSP BSB)
Pitch4.5
Insert Size27
GradeBMA
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£17.46
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In Stock— only 3 left
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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.

Thread Type External
Thread Direction Right Hand
Thread Form W (BSW BSF BSP BSB)
Pitch 4.5
Insert Size 27
Grade BMA

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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.

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Staff are very helpful and interested in providing a good service making us the customer feel valued.
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