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Carmex Thread Turning External Insert - W (BSW BSF BSP BSB) - Right Hand - 16ER20WBMA
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | W (BSW BSF BSP BSB) |
| Pitch | 20 |
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Description
The Carmex Thread Turning External Insert - W (BSW BSF BSP BSB) - Right Hand - 16ER20WBMA is a versatile external threading insert designed to cover a wide range of thread standards. Featuring a laydown triangular geometry, this insert delivers stable cutting and reliable performance across many materials and applications.
Designed for a broad audience—including engineers, shop-floor buyers, tradespeople, hobbyists, and professionals—this insert supports external threads in BSW, BSF, BSP, and BSB standards, helping you handle both simple and demanding threading tasks with consistent results.
- Broad external thread compatibility: Supports BSW, BSF, BSP, and BSB external threads, reducing tool changes and keeping production moving smoothly.
- Laydown triangular geometry for stability: Optimizes chip flow and cutting stability, delivering repeatable thread quality and longer insert life across multiple passes.
- Right-hand orientation for predictable results: Engineered for right-hand threads to provide consistent cutting action and easier setup with standard tooling.
This insert is a practical, reliable choice for anyone performing external thread turning, offering flexible coverage from everyday tasks to more demanding threading requirements. Its robust design supports longer service life, reduces downtime, and helps ensure accurate, clean threads across a range of standards.
Part Numbers
- Protool Part Number
- 16ER20WBMA
- 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.
