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Carmex Carbide Threading Insert - NPS - TiAlN Coated - 40-11.5NPS
| Application | Threading |
| Thread Form | NPS |
| Internal or External | Internal & External |
| Insert Size | 40 |
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The Carmex Carbide Threading Insert for NPS threads is a versatile, TiAlN-coated solution built for machinists who need reliable, multi-profile threading in a single insert. Designed to handle a range of common thread forms, it delivers consistent results across everyday production work.
- Coating: TiAlN coating provides enhanced hardness and wear resistance for longer tool life and better heat tolerance.
- Thread profiles: A comprehensive collection that covers all common thread profiles in a single insert.
- Lengths: Available in 5 lengths, from 12 mm to 40 mm, to suit different tooling setups and applications.
- Cutting edges: Double-sided design with two cutting edges per insert, increasing cutting life (note: BSPT / NPT / NPTF / American Buttress / API RD are exceptions).
- Internal/External capability: For many profiles, the same insert can machine both internal and external threads (with exceptions: ISO / UN / NPSM / UNJ / Acme).
- Pitch range: Depending on length, supports pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI), enabling a broad range of threading tasks.
This insert is ideal for production environments, job shops, and maintenance teams that require flexible threading capabilities without maintaining a large assortment of inserts. The TiAlN coating helps resist wear on challenging materials, while the double-edged geometry reduces downtime by extending usable life between indexings. Use it for standard NPS threads in pipes, fittings, fasteners, and mechanical assemblies where reliable, consistent threading is essential.
Part Numbers
- Protool Part Number
- 40-11.5NPS
- 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 Carbide Threading Inserts - NPS - TiAlN Coated
View full collection →You are viewing 40-11.5NPS. Click any other SKU to view its full details.
| Product SKU | Insert Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| 12-18NPS | 12 | 18 | £29.81 | 5 days | |
| 14-14NPS | 14 | 14 | £29.81 | In Stock | |
| 14-18NPS | 14 | 18 | £29.81 | 5 days | |
| 21-11.5NPS | 21 | 11.5 | £39.62 | In Stock | |
| 21-14NPS | 21 | 14 | £39.62 | 5 days | |
| 30-11.5NPS | 30 | 11.5 | £54.34 | 5 days | |
| 30-8NPS | 30 | 8 | £54.34 | In Stock | |
| 40-11.5NPS Viewing | 40 | 11.5 | £93.98 | 5 days |
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