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Carmex Carbide Tiny Tool - Threading - MIL - Metric - K20 Grade - 4.1mm Minimum Diameter x 15mm Reach (Left Hand)

Carmex Carbide Tiny Tool - Threading - MIL - Metric - K20 Grade - 4.1mm Minimum Diameter x 15mm Reach (Left Hand)

SKU:MIL4L150.8ISOK20

The Carmex Carbide Tiny Tool for Threading is a compact ISO threading tool designed for small-diameter parts. Made from premium K20-grade carbide, it delivers exceptional wear resistance and cons... Read more ↓
M
K
N
S
ApplicationThreading (MIL)
Thread FormMetric
Pitch or Pitch Range0.8
Minimum Diameter4.1
Reach15
GradeK20
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£23.65
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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The Carmex Carbide Tiny Tool for Threading is a compact ISO threading tool designed for small-diameter parts. Made from premium K20-grade carbide, it delivers exceptional wear resistance and consistent cutting performance in tight spaces.

With a 4.1 mm minimum diameter and a 15 mm reach, plus left-hand threading capability, it reaches into tight features while maintaining accuracy. Its MIL/ISO compatibility means it works with a wide range of machines and setups, making it ideal for engineers, machinists, and hobbyists who demand precise thread finishes on small components.

  • Compact size with precise reach: Access tight features with a 4.1 mm minimum diameter and 15 mm reach, preserving accuracy when threading small parts.
  • K20-grade carbide durability: Premium carbide delivers long tool life and excellent wear resistance, helping you complete more jobs between substitutions.
  • Left-hand threading with MIL/ISO compatibility: Supports left-hand threads and standard ISO/MIL specs for broad machine compatibility and reliable results.

With the Carmex Tiny Tool, you gain precise control in confined spaces, faster setups, and repeatable thread quality on small components. The durable carbide and compact geometry minimize downtime and maximize productivity, while MIL/ISO compatibility simplifies tooling across different machines and processes. Whether you're manufacturing tiny fasteners, fittings, or prototype parts, this tool helps you achieve clean, accurate threads and dependable performance in every job.

Application Threading (MIL)
Thread Form Metric
Pitch or Pitch Range 0.8
Minimum Diameter 4.1
Reach 15
Grade K20
Holder SIM****H4

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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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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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 ISO Tool (MIR)

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You are viewing MIL4L150.8ISOK20. Click any other SKU to view its full details.

Product SKUPitch or Pitch RangeMinimum DiameterReachGradeHolderPriceStock Order
MIR3L100.5ISOBMK 0.52.410BMKSIM****H3£28.70 5 days
MIR3L100.5ISOBXC 0.52.410BXCSIM****H3£26.08 5 days
MIR3L150.5ISOBMK 0.53.215BMKSIM****H3£27.35 In Stock
MIR3L150.5ISOBXC 0.53.215BXCSIM****H3£24.93 In Stock
MIR3L150.75ISOBMK 0.753.215BMKSIM****H3£27.35 5 days
MIR3L150.75ISOBXC 0.753.215BXCSIM****H3£24.93 5 days
MIR3L150.7ISOBMK 0.73.215BMKSIM****H3£27.35 5 days
MIR3L150.7ISOBXC 0.73.215BXCSIM****H3£24.93 In Stock
MIR4L150.5ISOBMK 0.54.115BMKSIM****H4£27.35 In Stock
MIR4L150.5ISOBXC 0.54.115BXCSIM****H4£24.93 In Stock
MIR4L150.75ISOBMK 0.754.115BMKSIM****H4£27.35 5 days
MIR4L150.75ISOBXC 0.754.115BXCSIM****H4£24.93 In Stock
MIR4L150.8ISOBMK 0.84.115BMKSIM****H4£27.35 In Stock
MIR4L150.8ISOBXC 0.84.115BXCSIM****H4£24.93 In Stock
MIR5L151.0ISOBMK 14.915BMKSIM****H5£28.00 In Stock
MIR5L151.0ISOBXC 14.915BXCSIM****H5£25.48 In Stock
MIR6L221.25ISOBMK 1.256.122BMKSIM****H6£30.00 5 days
MIR6L221.25ISOBXC 1.256.122BXCSIM****H6£27.28 5 days
MIR6L221.5ISOBMK 1.56.122BMKSIM****H6£30.00 5 days
MIR6L221.5ISOBXC 1.56.122BXCSIM****H6£27.28 5 days
MIR5L151.0ISOK20 14.915K20SIM****H5£24.20 5 days
MIR3L150.75ISOK20 0.753.215K20SIM****H3£23.65 5 days
MIR3L150.7ISOK20 0.73.215K20SIM****H3£23.65 5 days
MIR3L150.5ISOK20 0.53.215K20SIM****H3£23.65 5 days
MIR3L100.5ISOK20 0.52.410K20SIM****H3£20.95 5 days
MIR6L221.25ISOK20 1.256.122K20SIM****H6£25.90 5 days
MIR4L150.8ISOK20 0.84.115K20SIM****H4£23.65 5 days
MIR4L150.5ISOK20 0.54.115K20SIM****H4£23.65 5 days
MIR6L221.5ISOK20 1.56.122K20SIM****H6£25.90 5 days
MIR4L150.75ISOK20 0.754.115K20SIM****H4£23.65 5 days
MIR5L151.0ISOTNX 14.915TNXSIM****H5£25.83 5 days
MIR6L221.25ISOTNX 1.256.122TNXSIM****H6£27.65 5 days
MIR4L150.5ISOTNX 0.54.115TNXSIM****H4£25.30 5 days
MIR4L150.75ISOTNX 0.754.115TNXSIM****H4£25.30 5 days
MIL3L100.5ISOBMK 0.52.410BMKSIM****H3£28.70 5 days
MIL3L100.5ISOBXC 0.52.410BXCSIM****H3£22.05 5 days
MIL3L100.5ISOK20 0.52.410K20SIM****H3£20.95 5 days
MIL3L150.5ISOBMK 0.53.215BMKSIM****H3£27.35 5 days
MIL3L150.5ISOBXC 0.53.215BXCSIM****H3£24.93 5 days
MIL3L150.5ISOK20 0.53.215K20SIM****H3£23.65 5 days
MIL3L150.75ISOBMK 0.753.215BMKSIM****H3£27.35 5 days
MIL3L150.75ISOBXC 0.753.215BXCSIM****H3£24.93 5 days
MIL3L150.75ISOK20 0.753.215K20SIM****H3£23.65 5 days
MIL3L150.7ISOBMK 0.73.215BMKSIM****H3£27.35 5 days
MIL3L150.7ISOBXC 0.73.215BXCSIM****H3£24.93 5 days
MIL3L150.7ISOK20 0.73.215K20SIM****H3£23.65 5 days
MIL4L150.5ISOBMK 0.54.115BMKSIM****H4£27.35 5 days
MIL4L150.5ISOBXC 0.54.115BXCSIM****H4£24.93 5 days
MIL4L150.5ISOK20 0.54.115K20SIM****H4£23.65 5 days
MIL4L150.5ISOTNX 0.54.115TNXSIM****H4£25.30 5 days
MIL4L150.75ISOBMK 0.754.115BMKSIM****H4£27.35 5 days
MIL4L150.75ISOBXC 0.754.115BXCSIM****H4£24.93 5 days
MIL4L150.75ISOK20 0.754.115K20SIM****H4£23.65 5 days
MIL4L150.75ISOTNX 0.754.115TNXSIM****H4£25.30 5 days
MIL4L150.8ISOBMK 0.84.115BMKSIM****H4£27.35 5 days
MIL4L150.8ISOBXC 0.84.115BXCSIM****H4£24.93 In Stock
MIL4L150.8ISOK20 Viewing0.84.115K20SIM****H4£23.65 5 days
MIL5L151.0ISOBMK 14.915BMKSIM****H5£28.00 5 days
MIL5L151.0ISOBXC 14.915BXCSIM****H5£25.48 In Stock
MIL5L151.0ISOK20 14.915K20SIM****H5£24.20 5 days
MIL5L151.0ISOTNX 14.915TNXSIM****H5£25.83 5 days
MIL6L221.25ISOBMK 1.256.122BMKSIM****H6£30.00 5 days
MIL6L221.25ISOBXC 1.256.122BXCSIM****H6£27.28 5 days
MIL6L221.25ISOK20 1.256.122K20SIM****H6£25.90 5 days
MIL6L221.25ISOTNX 1.256.122TNXSIM****H6£27.68 5 days
MIL6L221.5ISOBMK 1.56.122BMKSIM****H6£25.35 5 days
MIL6L221.5ISOBXC 1.56.122BXCSIM****H6£27.28 5 days
MIL6L221.5ISOK20 1.56.122K20SIM****H6£21.90 5 days

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