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Carmex Thread Turning External Insert - BSPT - Right Hand - 16ER28BSPTK20
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | BSPT |
| Pitch | 28 |
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Carmex Thread Turning External Insert - BSPT - Right Hand - 16ER28BSPTK20 is an external threading insert designed to produce BSPT threads with reliable, consistent results. It sits in an industry-leading range recognized worldwide for addressing the majority of thread standards with a single, versatile solution. These laydown triangular inserts are built to handle a wide range of applications—from basic threading tasks to the most demanding ones—making them a practical choice for machinists, engineers, and buyers who value dependable performance and straightforward setup.
- Broad thread-standards coverage: Designed to provide a solution for the majority of thread standards available today, reducing the need to switch inserts and keeping your setup simple.
- Laydown triangular geometry for stable performance: The laydown triangular inserts offer stable cutting action across a wide range of thread forms, helping you achieve clean, accurate BSPT threads in less time.
- BSPT Right-Hand external threading compatibility: Specifically matched to BSPT right-hand external threads, enabling efficient, repeatable thread turning with a single insert.
With this insert, you can tackle BSPT external threading with a single, dependable tool that covers most standards and handles both simple and complex jobs. The design supports efficient setup, fewer tool changes, and consistent thread quality, helping you meet production timelines and deliver reliable results across a variety of projects.
Part Numbers
- Protool Part Number
- 16ER28BSPTK20
- 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.



