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16ER20WK20 - 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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The ones our customers buy most.Description
Introducing the Carmex Thread Turning External Insert - Right Hand, model 16ER20WK20. This insert is part of Carmex’s industry-leading range, designed for external threading and coverage of major thread standards including BSW, BSF, BSP, and BSB, with a laydown triangular geometry that promotes stable cutting action and consistent thread forms.
- Broad thread-standard compatibility: Covers BSW, BSF, BSP, and BSB with a single insert type, reducing tool changes and stocking complexity.
- Versatile performance across applications: The laydown triangular geometry delivers stable chip control and smooth, repeatable thread finishes from basic to demanding profiles.
- Durable design for longer tool life: Robust edge geometry and wear resistance help extend insert life and minimize downtime during production runs.
This external insert helps you streamline production by enabling quick setup and fewer tool changes while consistently delivering accurate thread forms. Its right-hand orientation aligns with standard external threading operations, making it a dependable choice for prototypes, small-batch work, and full-scale production alike.
Part Numbers
- Protool Part Number
- 16ER20WK20
- 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.



