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Carmex Thread Turning External Insert - W (BSW BSF BSP BSB) - Left Hand - 27EL4.5WBMA
| Thread Type | External |
| Thread Direction | Left Hand |
| Thread Form | W (BSW BSF BSP BSB) |
| Pitch | 4.5 |
| Insert Size | 27 |
| Grade | BMA |
Learn more about Klarna
The Carmex Thread Turning External Insert, 27EL4.5WBMA, is a versatile cutting insert designed for external threading tasks. It is optimized for left-hand threads and supports BSW, BSF, BSP, and BSB standards, making it a practical tool for shops handling multiple thread types.
Its laydown triangular geometry delivers stable cutting action and helps produce consistent thread forms across a wide range of applications—from basic threading jobs to more demanding tasks—while maintaining smooth chip flow and reliable performance.
- Wide thread-standard compatibility: Works with BSW, BSF, BSP, and BSB external threads, reducing tool changes and keeping your workflow efficient on mixed projects.
- Left-hand threading optimized: Specifically engineered for left-hand threads to deliver clean, accurate threads with reliable repeatability.
- Durable triangular laydown geometry: Robust geometry provides steady cutting action and predictable finishes, even in challenging materials and conditions.
This insert helps you complete external threading tasks faster and with greater confidence. By supporting multiple standards in one tool and delivering consistent results, it can shorten cycle times, simplify setups, and improve overall workflow across both routine and demanding threading jobs.
| Thread Type | External |
| Thread Direction | Left Hand |
| Thread Form | W (BSW BSF BSP BSB) |
| Pitch | 4.5 |
| Insert Size | 27 |
| Grade | BMA |
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.
