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Carmex Carbide Tiny Tool - Threading - MIR - UNJ (UNJC,UNJF,UNJEF,UNJS) - BMK Grade - 5mm Minimum Diameter x 18mm Reach

SKU:MIR5L1820UNJBMK

The Carmex Carbide Tiny Tool is a compact threading tool designed for small-diameter workpieces. It employs the UNJ thread form to deliver precise, repeatable threads in tight spaces, making it i... Read more ↓
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ApplicationThreading (MIR)
Thread FormUNJ (UNJC UNJF UNJEF UNJS)
Pitch or Pitch Range20
Minimum Diameter5
Reach18
GradeBMK
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£27.43
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

The Carmex Carbide Tiny Tool is a compact threading tool designed for small-diameter workpieces. It employs the UNJ thread form to deliver precise, repeatable threads in tight spaces, making it ideal for delicate components and limited-access features. Crafted from premium BMK-grade carbide, it combines strength, wear resistance, and long tool life in a tiny, easy-to-handle package. With a 5 mm minimum diameter and an 18 mm reach, this tool tackles small-part threading across a wide range of machines and systems.

  • UNJ threading design for precise small-diameter threads: Delivers accurate, consistent thread profiles on tiny parts, reducing rework and improving fit on mating components.
  • BMK-grade carbide for durability: Engineered for excellent wear resistance and long tool life, maintaining sharpness and performance through demanding threading tasks.
  • Compact geometry with 5 mm x 18 mm reach: Lets you access tight features and awkward cavities while maintaining strong engagement and stable cutting conditions.

The Carmex Tiny Tool enables faster, more reliable small-threading results, helping you streamline setups, minimize downtime, and achieve dependable threaded features across a variety of applications. Its durable construction and broad machine compatibility give you confidence to tackle precision threading in both production environments and on-the-workshop benches.

Application Threading (MIR)
Thread Form UNJ (UNJC UNJF UNJEF UNJS)
Pitch or Pitch Range 20
Minimum Diameter 5
Reach 18
Grade BMK
Holder SIM****H5

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 Tiny Tools - Small Threading UNJ Tool (MIR)

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You are viewing MIR5L1820UNJBMK. Click any other SKU to view its full details.

Product SKUPitch or Pitch RangeMinimum DiameterReachGradeHolderPriceStock Order
MIR3L1532UNJBMK 323.215BMKSIM****H3£21.08 5 days
MIR3L1532UNJBXC 323.215BXCSIM****H3£25.00 5 days
MIR5L1528UNJBMK 284.915BMKSIM****H5£27.43 5 days
MIR5L1528UNJBXC 284.915BXCSIM****H5£25.00 In Stock
MIR5L1820UNJBMK Viewing20518BMKSIM****H5£27.43 5 days
MIR5L1820UNJBXC 20518BXCSIM****H5£25.00 5 days
MIR5L1820UNJK20 20518K20SIM****H5£23.75 5 days
MIR3L1532UNJK20 323.215K20SIM****H3£20.08 5 days
MIR5L1528UNJK20 284.915K20SIM****H5£23.75 5 days
MIR5L1528UNJTNX 284.915TNXSIM****H5£25.35 5 days
MIL3L1532UNJBMK 323.215BMKSIM****H3£21.50 5 days
MIL3L1532UNJBXC 323.215BXCSIM****H3£21.10 5 days
MIL3L1532UNJK20 323.215K20SIM****H3£20.08 5 days
MIL5L1528UNJBMK 284.915BMKSIM****H5£23.18 5 days
MIL5L1528UNJBXC 284.915BXCSIM****H5£21.10 5 days
MIL5L1528UNJK20 284.915K20SIM****H5£20.08 5 days
MIL5L1528UNJTNX 284.915TNXSIM****H5£25.35 5 days
MIL5L1820UNJBMK 20518BMKSIM****H5£23.18 5 days
MIL5L1820UNJBXC 20518BXCSIM****H5£21.10 5 days
MIL5L1820UNJK20 20518K20SIM****H5£20.08 5 days

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