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11ER20WBMA - Carmex Thread Turning External Insert - W (BSW BSF BSP BSB) - Right Hand
| 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 — Right Hand (11ER20WBMA) is a precision cutting insert designed for external threading on a wide range of standards, including BSW, BSF, BSP and BSB. It’s optimized for right-hand thread production and suitable for both shop-floor specialists and hobbyists, delivering clean, accurate threads with consistent performance across basic to demanding applications.
Powered by Carmex's industry-leading thread turning range, these laydown triangular inserts combine robust geometry with reliable materials to tackle common to challenging threading tasks. The result is a versatile tool that reduces setup time and increases productivity on the machine bed.
- Broad compatibility across major thread standards: Cuts external threads to BSW, BSF, BSP and BSB with a single insert, simplifying setups and minimizing tool changes.
- Laydown triangular geometry for smooth, stable cutting: Designed to resist chatter, boost rigidity, and improve chip control for consistent thread profiles even in tougher materials.
- Industry-leading durability and manufacturing quality: Engineered for long insert life and reliable performance, helping you get more cycles between changes and delivering repeatable results.
This insert helps you streamline threading operations by covering multiple standards with one tool, delivering clean, precise threads, reducing downtime from tool swaps, and maintaining consistent results across a wide range of materials and applications. It’s designed to be dependable under real-world shop conditions, so you can trust it to perform when it matters most.
Part Numbers
- Protool Part Number
- 11ER20WBMA
- 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.
