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Carmex Carbide Threading Insert - NPSM - TiAlN Coated - 30E8NPSM

SKU:30E8NPSM

The Carmex Carbide Threading Insert for NPSM, TiAlN coated, model 30E8NPSM is a durable threading solution built for precision work on lathes. Designed for professional shops, it delivers reliable... Read more ↓
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ApplicationThreading
Thread FormNSPM
Internal or ExternalExternal
Insert Size30
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£41.74
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Carmex Carbide Threading Insert for NPSM, TiAlN coated, model 30E8NPSM is a durable threading solution built for precision work on lathes. Designed for professional shops, it delivers reliable performance across a range of common thread profiles.

Five length options (12 mm to 40 mm) pair with a broad pitch range—0.5 mm / 32 TPI to 6.0 mm / 4 TPI depending on length—to cover most standard threading tasks without swapping inserts.

  • Double-edged design: The inserts are generally double sided, offering two cutting edges to extend tool life. Exceptions apply for BSPT, NPT, NPTF, American Buttress, and API RD profiles.
  • Wide threading coverage: Crafted to cover all common thread profiles, enabling efficient setup for a variety of jobs. Note that internal vs external capability can vary by profile; ISO / UN / NPSM / UNJ / Acme are among the profiles with specific directional considerations.
  • Five length options: Choose from 12 mm, 16 mm, 20 mm, 30 mm, or 40 mm lengths to fit your machine tooling and the depth of threads you need.
  • TiAlN-coated carbide: The TiAlN coating enhances wear resistance and heat tolerance, helping to extend insert life in demanding materials and cutting conditions.

This insert is designed to simplify threading workflows by supporting many profiles with a single tool, reducing setup time and tool changes. While it excels for a broad range of internal and external threading tasks, be mindful of profiles where dual-direction capability with the same insert is not available. Ideal for fabricating mechanical components, automotive parts, and industrial fasteners, this Carmex insert delivers consistent performance and dependable results for everyday threading challenges.

Part Numbers

Protool Part Number
30E8NPSM
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.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Carmex Carbide Threading Inserts - NPSM - TiAlN Coated

View full collection →

You are viewing 30E8NPSM. Click any other SKU to view its full details.

Product SKUInsert SizePitchPriceStock Order
12I18NPSM 1218£22.91 5 days
14E18NPSM 1418£22.91 5 days
14I18NPSM 1418£22.91 In Stock
21E11.5NPSM 2111.5£30.44 5 days
21E14NPSM 2114£30.44 5 days
21I11.5NPSM 2111.5£39.62 In Stock
21I14NPSM 2114£30.44 5 days
30E11.5NPSM 3011.5£41.74 5 days
30E8NPSM Viewing308£41.74 5 days
30I11.5NPSM 3011.5£41.74 5 days
30I8NPSM 308£41.74 5 days
40E11.5NPSM 4011.5£72.20 5 days
40E8NPSM 408£72.20 5 days
40I11.5NPSM 4011.5£72.20 5 days

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