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11ER28WBMA - 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 | 28 |
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The Carmex Thread Turning External Insert, model 11ER28WBMA, is a right-hand external threading insert designed for use with BSW, BSF, BSP, and BSB standards. Its laydown triangular geometry delivers dependable performance across a wide range of thread forms, making it a versatile choice for many parts and applications.
Ideal for engineers, machinists, and workshop technicians, this insert helps you achieve clean, consistent threads with reliable results—from quick maintenance jobs to higher‑volume production runs.
- Cross-Standard Compatibility: Works with BSW, BSF, BSP, and BSB external thread standards, reducing the need for multiple inserts and simplifying setup.
- Broad Range of Applications: Delivers stable cutting action from basic to demanding threading tasks, helping you achieve accurate threads and smooth finishes across common materials.
- Durable, Long‑Life Geometry: Robust edge geometry and layout provide extended life between changes, lowering downtime and improving overall productivity.
This insert combines reliability with practical performance, so you can trust it to handle everyday threading challenges while delivering repeatable results that support tighter tolerances and efficient manufacturing workflows.
Part Numbers
- Protool Part Number
- 11ER28WBMA
- 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.










