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Carmex Spiral Mill Threading Insert - NPT - H17-14NPTMT7
| Application | Threading |
| Thread Form | NPT |
| Internal or External | Internal & External |
| Insert Size | H17 |
| Pitch | 14 |
| Holder Code | SRH17… |
Learn more about Klarna
Carmex Spiral Mill Threading Insert for NPT (H17-14NPTMT7) is a spiral‑fluted threading insert designed to deliver precise, efficient NPT threading across a wide range of materials and machining setups. Whether you’re operating a compact machining center or a high‑power milling system, this tool promotes smooth cutting at higher feed rates and shorter cycle times.
Its flexible insert system and unique clamping enable optimal indexability, letting you mount 1 to 9 inserts in a compact cutting diameter while enjoying quick changeovers and reliable, repeatable results.
- High‑speed threading with smooth cutting: The spiral design enables a smooth cutting operation at a high feed rate, reducing overall machining time without sacrificing finish quality.
- Flexible inserts with reliable indexability: Spiral toolholders hold 1 to 9 inserts in a small diameter, and the innovative clamping method ensures precise indexing for quick, dependable tool changes.
- Durable MT7, TiN‑coated for broad material use: Inserts are MT7 Sub‑Micron Grade with Titanium Nitride multi‑layer coating (ISO K10‑K20), a general‑purpose option suitable for all materials and capable of delivering consistent threading, roughing, and finishing results.
This combination of spiral design, versatile indexing, and robust TiN coating helps you achieve reliable finishes, improve workflow efficiency, and maintain consistent performance across demanding threading and milling tasks.
| Application | Threading |
| Thread Form | NPT |
| Internal or External | Internal & External |
| Insert Size | H17 |
| Pitch | 14 |
| Holder Code | SRH17… |
| Fig | 1 |
| Thread Size | 1/2 - 3/4 |
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 Spiral Mill Threading Inserts - NPT
View full collection →You are viewing H17-14NPTMT7. Click any other SKU to view its full details.
| Product SKU | Insert Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| H13-18NPTMT7 | H13 | 18 | £50.98 | 5 days | |
| H15-14NPTMT7 | H15 | 14 | £50.98 | 5 days | |
| H17-14NPTMT7 Viewing | H17 | 14 | £50.98 | 5 days | |
| H23-11.5NPTMT7 | H23 | 11.5 | £48.14 | 5 days | |
| H32-14NPTMT7 | H32 | 14 | £65.22 | 5 days | |
| H32-11.5NPTMT7 | H32 | 11.5 | £50.96 | 5 days | |
| H45-11.5NPTMT7 | H45 | 11.5 | £56.58 | 5 days | |
| H45-8NPTMT7 | H45 | 8 | £69.10 | 5 days | |
| H63-11.5NPTMT7 | H63 | 11.5 | £56.58 | 5 days | |
| H63-8NPTMT7 | H63 | 8 | £69.10 | 5 days |
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