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16EL40WBMA - Carmex Thread Turning External Insert - W (BSW BSF BSP BSB) - Left Hand
| Thread Type | External |
| Thread Direction | Left Hand |
| Thread Form | W (BSW BSF BSP BSB) |
| Pitch | 40 |
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The ones our customers buy most.Description
Carmex Thread Turning External Insert – Left Hand (BSW BSF BSP BSB) – 16EL40WBMA is a versatile external threading insert crafted to cover the most common British thread standards. Its laydown triangular geometry delivers stable cutting action and reliable results across a range of applications, from basic projects to more demanding machining tasks.
- Broad thread-standards compatibility: Designed to work with BSW, BSF, BSP, and BSB external threads, reducing tool changes and downtime so you can complete more jobs in less time.
- Durable laydown triangular geometry: Provides consistent thread profiles and even wear resistance, helping you achieve clean, accurate threads even on tougher materials.
- Left-hand threading efficiency: Optimized for external left-hand threading, enabling smooth setups and reliable cutting performance in standard machining centers.
This insert offers a dependable, multi-application solution that simplifies stock planning and improves productivity. By handling multiple thread standards with one tool, it helps you maintain steady throughput, reduce rework, and deliver consistent results across a broad range of threading tasks.
Part Numbers
- Protool Part Number
- 16EL40WBMA
- 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.










