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Carmex Thread Turning Internal Insert - Trapez - Right Hand - 16IR2.5TRK20SP
| Thread Type | Internal |
| Thread Direction | Right Hand |
| Thread Form | Trapez |
| Pitch | 2.5 |
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Carmex Thread Turning Internal Insert - Trapez - Right Hand - 16IR2.5TRK20SP sits at the heart of Carmex's industry-leading line of thread turning inserts. These laydown triangular inserts are designed to cover the majority of thread standards used today, providing a versatile solution for a wide range of applications—from basic threading tasks to the most demanding precision work.
Engineers, machinists, and hobbyists alike will appreciate the straightforward setup and dependable performance this insert delivers across internal threading tasks.
- Broad thread compatibility: Designed to cover the majority of thread standards in use today, helping you tackle diverse projects without swapping inserts.
- Durable laydown triangular geometry: Provides stable cutting action and consistent thread quality across a wide range of materials, supporting reliable results every time.
- Right-hand threading suitability: Optimized for right-hand threads, enabling smooth operation and straightforward setup with this insert.
By using this internal thread turning insert, you gain a versatile and dependable tool that supports accurate, repeatable internal threads across a broad spectrum of standards. Its combination of wide compatibility and robust geometry helps streamline workflows, reduce tool changes, and improve overall productivity in both prototyping and production environments.
Part Numbers
- Protool Part Number
- 16IR2.5TRK20SP
- 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.



