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Carmex Internal Multiple Threading Insert holder - For Carbide External/Internal Threading Inserts - SR0063C30-4
| Insert Size | 30 |
| Shank Material | Steel |
| Reach | Shell Type |
| Overall Length | 50 |
| Minimum Bore Diameter | 63 |
| Flutes | 4 |
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Designed for precision internal threading on CNC milling centers, the Carmex Internal Multiple Threading Insert Holder (SR0063C30-4) brings multi-insert efficiency to internal thread milling. It’s ideal for shops needing reliable internal threads with lower tooling costs and higher productivity.
- Multi-insert capacity: Holds 4–8 carbide inserts per holder for aggressive, multi-tooth engagement on internal threads.
- Internal-threading focused: Specifically designed for internal applications on CNC mills, enabling efficient thread milling via helical interpolation.
- Carbide insert compatibility: Utilizes multi-tooth carbide inserts to achieve higher cutting speeds and longer insert life.
- Cost-efficient threading solution: A practical alternative to taps and dies, with easy replacement of worn inserts to keep production moving.
- Mill-Thread family compatibility: Part of Carmex’s Mill-Thread line, offering a modular approach to consistent internal threading performance.
By using multiple carbide inserts in a single holder, you can achieve faster cutting and more consistent thread quality across diameters and pitches, thanks to shared load and simultaneous tooth engagement. The internal-only design keeps the operation focused on internal threading tasks, while the modular Mill-Thread platform makes insert changes quick and predictable, reducing downtime and per-thread cost. This approach is especially valuable for high-volume internal threads and threaded holes in automotive, aerospace, and general engineering applications. In practice, multi-insert tools can deliver meaningful productivity gains by increasing material removal rates without sacrificing accuracy, often at a lower cost per thread than traditional taps or single-point methods.
| Insert Size | 30 |
| Shank Material | Steel |
| Reach | Shell Type |
| Overall Length | 50 |
| Minimum Bore Diameter | 63 |
| Flutes | 4 |
| Spigot Diameter | 22 |
| Insert Screw | S30 |
| Torx Key | K30 |
| Extension | N/A |
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 Internal Multiple Threading Insert holders - For Carbide External/Internal Threading Inserts
View full collection →You are viewing SR0063C30-4. Click any other SKU to view its full details.
| Product SKU | Insert Size | Overall Length | Minimum Bore Diameter | Flutes | Spigot Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| SR0063C21-5 | 21 | 50 | 63 | 5 | 22 | £407.52 | 5 days | |
| SR0063C30-4 Viewing | 30 | 50 | 63 | 4 | 22 | £407.52 | 5 days | |
| SR0080D30-4 | 30 | 55 | 80 | 4 | 27 | £438.84 | 5 days | |
| SR0080D40-4 | 40 | 65 | 80 | 4 | 32 | £438.84 | 5 days | |
| SR0100D30-4 | 30 | 60 | 100 | 4 | 32 | £461.54 | 5 days | |
| SR0100D30-8 | 30 | 60 | 100 | 8 | 27 | £509.50 | 5 days | |
| SR0100E40-4 | 40 | 70 | 100 | 4 | 32 | £461.54 | 5 days | |
| SR0100E40-6 | 40 | 70 | 100 | 6 | 32 | £313.54 | 5 days |
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