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Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14E18UNJ

SKU:14E18UNJ

The Carmex Carbide Threading Insert for UNJ threads is a precision, TiAlN-coated carbide tool designed for reliable UNJ threading in metalworking. Built for machinists and job shops, it delivers ... Read more ↓
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ApplicationThreading
Thread FormUNJ
Internal or ExternalExternal
Insert Size14
Pitch18
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£22.91
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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The Carmex Carbide Threading Insert for UNJ threads is a precision, TiAlN-coated carbide tool designed for reliable UNJ threading in metalworking. Built for machinists and job shops, it delivers consistent performance across common thread profiles with multiple length options to fit the task.

  • Threading coverage: A versatile collection that spans all common thread profiles, enabling broad compatibility in a single insert family.
  • Lengths: Available in 5 lengths from 12 mm up to 40 mm to match the depth and pitch of your project.
  • Pitches supported: Depending on length, capable of handling pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).
  • Material: Solid carbide insert with a TiAlN coating for enhanced wear resistance and higher heat tolerance during threading.
  • Edge configuration: Double-sided design with two cutting edges to extend tool life and reduce downtime (except for BSPT, NPT, NPTF, American Buttress, and API RD profiles).
  • Internal/External capability: For many thread profiles, the same insert can machine both internal and external threads, increasing versatility (with exceptions for ISO, UN, NPSM, UNJ, and Acme).
  • UNJ designation: Specifically suited for UNJ thread profiles, supporting accurate, consistent results on precision components.
  • Coating benefits: TiAlN coating provides superior wear resistance and thermal stability, helping maintain accuracy at elevated cutting speeds.

This insert is ideal for shops that handle a range of threaded components—from prototype runs to production batches—where minimizing tool changes and achieving dependable thread quality matters. Its dual-edge design and broad pitch range make it a practical choice for mixed-threading tasks, while the UNJ focus ensures precise thread form and finish. The combination of carbide hardness and TiAlN coating translates to longer tool life and steadier performance across challenging materials.

Application Threading
Thread Form UNJ
Internal or External External
Insert Size 14
Pitch 18

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.

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Staff are very helpful and interested in providing a good service making us the customer feel valued.
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honest about stock and prices are competitive.
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Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
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Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
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Full Range: Carmex Carbide Threading Inserts - UNJ - TiAlN Coated

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You are viewing 14E18UNJ. Click any other SKU to view its full details.

Product SKUInsert SizePitchPriceStock Order
14I24UNJ 1424£22.91 5 days
14E24UNJ 1424£22.91 5 days
14I20UNJ 1420£22.91 5 days
14E20UNJ 1420£22.91 5 days
14I18UNJ 1418£29.81 In Stock
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14I16UNJ 1416£22.91 5 days
14E16UNJ 1416£22.91 5 days
14I14UNJ 1414£22.91 5 days
14E14UNJ 1414£22.91 5 days
14I12UNJ 1412£22.91 5 days
14E12UNJ 1412£22.91 5 days
21I24UNJ 2124£30.44 5 days
21E24UNJ 2124£30.44 5 days
21I20UNJ 2120£30.44 5 days
21E20UNJ 2120£30.44 5 days
21I18UNJ 2118£30.44 5 days
21E18UNJ 2118£30.44 5 days
21I16UNJ 2116£30.44 5 days
21E16UNJ 2116£30.44 5 days
21I14UNJ 2114£30.44 5 days
21E14UNJ 2114£30.44 5 days
21I12UNJ 2112£39.62 In Stock
21E12UNJ 2112£30.44 5 days