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16ER1.25ISOK20 - Carmex Thread Turning External Insert - Metric - Right Hand
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | Metric |
| Pitch | 1.25 |
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Carmex Thread Turning External Insert – Metric – Right Hand – 16ER1.25ISOK20 is an external thread turning insert with a triangular laydown geometry, designed for metric right-hand threads. It covers a broad range of thread standards, making it a versatile choice for diverse threading tasks.
- Broad thread-standards compatibility: Built to address the majority of common thread standards, helping you tackle a wide variety of jobs with a single insert and reducing tool-change overhead.
- Triangular laydown geometry for stable cutting: The laydown triangular design provides consistent engagement and reliable performance across basic to more demanding threading applications.
- Metric, right-hand threading configuration: Specifically tailored for metric right-hand threads, delivering dependable, predictable results in everyday threading operations.
This insert is designed to help you complete threading tasks efficiently and with confidence. By supporting a wide range of standards and providing stable, reliable performance, it can improve workflow consistency and result quality across a spectrum of projects—from straightforward threading to more challenging workpieces.
Part Numbers
- Protool Part Number
- 16ER1.25ISOK20
- 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.



