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


Carmex Thread Turning Holder Top Clamp - Internal - Right Hand - 200mm OAL - 16IR Insert - 25 Shank Size
| Type | Top Clamp |
| Internal or External | Internal |
| Minimum Bore | 29 |
| Shank Size | 25 |
| Hand | Right |
| Overall Length | 200 |
Learn more about Klarna
Carmex Thread Turning Holder Top Clamp is a precision tool designed for internal threading tasks, engineered to perform reliably in both right-hand and left-hand applications. Its robust top-clamp design delivers stable, accurate thread cutting across demanding machining setups.

- Top Clamp Design: Enhanced rigidity and stability during machining to reduce deflection and improve thread consistency.
- Internal Threading Compatibility: Suitable for internal threading operations in both right- and left-hand directions for versatile use.
- Insert Compatibility: Accepts IR and IL inserts, with secure engagement for precise, repeatable cuts (includes 16IR insert compatibility).
- Dimensions: 200 mm overall length (OAL) with a 25 mm shank size, providing reach and stiffness in tight or awkward setups.
- Durable Construction: Built to withstand high-speed machining and demanding materials, delivering long tool life and dependable performance.
This holder is ideal for shops and manufacturers that routinely machine internal threads in bores, housings, or components where precision fit and surface finish matter. The combination of top-clamp rigidity, insert versatility (IR/IL), and balanced geometry helps reduce chatter, improve roundness, and produce consistent thread profiles across runs, contributing to better part quality and reduced rework.
| Type | Top Clamp |
| Internal or External | Internal |
| Minimum Bore | 29 |
| Shank Size | 25 |
| Hand | Right |
| Overall Length | 200 |
| Insert | 16IR |
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.
Full Range: Carmex Top Clamp Threading Bars Internal - Right/Left Hand - For IR/IL Inserts
View full collection →You are viewing DIR0025R16. Click any other SKU to view its full details.
| Product SKU | Type | Internal or External | Minimum Bore | Shank Size | Hand | Overall Length | Insert | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|---|
| DIR0020P16 | Top Clamp | Internal | 24 | 20 | Right | 170 | 16IR | £64.54 | 5 days | |
| DIR0025R16 Viewing | Top Clamp | Internal | 29 | 25 | Right | 200 | 16IR | £81.58 | 5 days | |
| DIR0032S16 | Top Clamp | Internal | 36 | 32 | Right | 250 | 16IR | £107.26 | 5 days | |
| DIR0025R22 | Top Clamp | Internal | 29 | 25 | Right | 200 | 22IR | £85.72 | 5 days | |
| DIL0020P16 | Top Clamp | Internal | 24 | 20 | Left | 170 | 16IL | £77.44 | 5 days | |
| DIL0025R22 | Top Clamp | Internal | 29 | 25 | Left | 200 | 22IL | £102.82 | 5 days |
No products match your filters.