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Carmex Carbide Threading Insert - NPT - TiAlN Coated - 30-8NPT
| Application | Threading |
| Thread Form | NPT |
| Internal or External | Internal & External |
| Insert Size | 30 |
| Pitch | 8 |
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The Carmex Carbide Threading Insert - NPT - TiAlN Coated - 30-8NPT is a high-precision, versatile threading solution designed for machinists who need reliable performance across multiple profiles with minimal tool changes.
- Profile coverage: A versatile collection that covers all common thread profiles, reducing the need for multiple inserts.
- Length options: Five lengths available, ranging from 12 mm to 40 mm, to fit different tooling setups and depth requirements.
- Pitch range: Accepts pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI), enabling a broad range of applications with a single insert family.
- Double-sided cutting edges: Each insert provides two cutting edges for extended life (except for BSPT/NPT/NPTF/American Buttress/API RD profiles).
- Internal & external capability: For many thread profiles, the same insert can machine both internal and external threads (with exceptions for ISO/UN/NPSM/UNJ/Acme).
- Material & coating: Carbide insert with TiAlN coating, offering improved wear resistance and heat management for longer tool life.
- Code and compatibility: Specifically designed as NPT-thread insert (30-8NPT) to support reliable progression through common NPT threading tasks.
This insert translates into tangible productivity gains: tougher TiAlN coating lives longer under high-speed, high-heat threading; dual edges and the broad profile coverage reduce tool changes and setup time; and the internal/external compatibility simplifies job planning. It’s particularly well-suited for shops handling a mix of threading tasks where precision, consistency, and tool longevity matter most. By choosing the 30-8NPT variant, you’re selecting a robust solution that supports varied NPT threading needs with fewer inserts in your kit.
| Application | Threading |
| Thread Form | NPT |
| Internal or External | Internal & External |
| Insert Size | 30 |
| Pitch | 8 |
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 Carbide Threading Inserts - NPT - TiAlN Coated
View full collection →You are viewing 30-8NPT. Click any other SKU to view its full details.
| Product SKU | Insert Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| 12-18NPT | 12 | 18 | £29.10 | In Stock | |
| 14-14NPT | 14 | 14 | £29.10 | In Stock | |
| 14-18NPT | 14 | 18 | £29.10 | In Stock | |
| 21-11.5NPT | 21 | 11.5 | £38.88 | In Stock | |
| 21-14NPT | 21 | 14 | £38.88 | In Stock | |
| 30-11.5NPT | 30 | 11.5 | £53.38 | In Stock | |
| 30-8NPT Viewing | 30 | 8 | £53.38 | In Stock | |
| 40-11.5NPT | 40 | 11.5 | £91.88 | 5 days | |
| 40-8NPT | 40 | 8 | £91.88 | 5 days |
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