Please log in here to access all benefits, including promotional discounts and faster checkouts.

11ER18WBMA - 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 | 18 |
Learn more about Klarna
Compatible holders
The ones our customers buy most.Description
Carmex Thread Turning External Insert – W is a high‑quality, laydown triangular insert designed for external threading on right‑hand operations. It supports multiple thread standards (BSW, BSF, BSP, BSB) in a single versatile tool, making it ideal for shops that value flexibility and consistent results.
As part of our industry‑leading range of thread turning inserts, this design handles a wide spectrum of applications—from basic threading tasks to the most demanding ones.
- Broad thread‑standard compatibility: Supports BSW, BSF, BSP, and BSB thread forms, providing a single solution that reduces tool changes and inventory complexity.
- Durable laydown triangular design: High‑quality geometry delivers stable engagement, precise thread profiles, and reliable performance across a wide range of materials and finishes.
- Right‑hand external turning oriented: Specifically shaped for right‑hand external threading, ensuring predictable cutting direction and smooth, consistent finishes.
By choosing the Carmex Thread Turning External Insert – W, you equip your shop with a flexible, dependable tool that simplifies threading work, improves throughput, and helps you achieve consistent results across common thread standards. The robust triangular geometry promotes stability and longer tool life, while the broad compatibility reduces the need for multiple inserts—saving time, reducing downtime, and expanding your ability to tackle a wider range of jobs with confidence.
Part Numbers
- Protool Part Number
- 11ER18WBMA
- 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.










