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Carmex Spiral Mill Threading Insert - NPS - H17-14NPSMT7
| Application | Threading |
| Thread Form | NPS |
| Internal or External | Internal & External |
| Insert Size | H17 |
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The ones our customers buy most.Description
The Carmex Spiral Mill Threading Insert for NPS threads (H17-14NPSMT7) is a precision cutting solution designed to streamline thread milling and related milling tasks. It’s built for a wide range of users—from engineers and shop floor buyers to tradespeople and hobbyists—delivering reliable performance in both small-part work and heavy-duty milling.
Thanks to its spiral flute design, this insert enables smooth cutting at high feed rates, helping you reduce machining time without sacrificing finish quality. It performs consistently across threading, end milling, roughing, and finishing operations, and its vibration-damping characteristics translate to steadier cuts and less downtime for tool changes or rework.
- Smooth, high‑feed milling with spiral geometry: Delivers efficient material removal with a clean finish and reduced cycle times, while minimizing vibration and chatter for dependable results.
- Versatile insert capacity with precise indexing: Spiral fluted toolholders hold 1 to 9 inserts in a compact cutting diameter, and the unique clamping method ensures optimal indexability for repeatable, reliable threading and milling.
- Durable MT7 TiN-coated inserts for broad material compatibility: MT7 Sub-Micron Grade with Titanium Nitride multi-layer coating (ISO K10-K20) provides wear resistance and consistent finishes across a wide range of materials and applications.
This general-purpose solution is designed to be reliable across diverse machining scenarios, from delicate small-part operations to demanding high-power milling. By combining a robust clamping system, a compact insert layout, and a proven TiN-coated MT7 grade, it helps you achieve precise threads and high-quality finishes with fewer tool changes and less downtime.
Part Numbers
- Protool Part Number
- H17-14NPSMT7
- Brand
- Carmex
- Category
- Thread Mill
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.
Full Range: Carmex Spiral Mill Threading Inserts - NPS
View full collection →You are viewing H17-14NPSMT7. Click any other SKU to view its full details.
| Product SKU | Insert Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| H13-18NPSMT7 | H13 | 18 | £40.08 | 5 days | |
| H15-14NPSMT7 | H15 | 14 | £40.08 | 5 days | |
| H17-14NPSMT7 Viewing | H17 | 14 | £40.08 | 5 days |
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