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Carmex Carbide Tiny Tool - Threading - MIL - MJ - BXC Grade - 4.9mm Minimum Diameter x 15mm Reach (Left Hand)

Carmex Carbide Tiny Tool - Threading - MIL - MJ - BXC Grade - 4.9mm Minimum Diameter x 15mm Reach (Left Hand)

SKU:MIL4L150.8MJBXC

The Carmex Carbide Tiny Tool – Threading – MIL – MJ – BXC Grade is a precision cutting tool designed for micro-threading applications. Built around the MJ thread profile, it delivers accurate, con... Read more ↓
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ApplicationThreading (MIL)
Thread FormMJ
Pitch or Pitch Range0.8
Minimum Diameter4.9
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£21.10
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 Tiny Tool – Threading – MIL – MJ – BXC Grade is a precision cutting tool designed for micro-threading applications. Built around the MJ thread profile, it delivers accurate, consistent threads on small-diameter parts. With a 4.9 mm minimum diameter and a 15 mm reach in a left-hand configuration, this tool excels in tight spaces and delicate assemblies.

Manufactured from premium BXC-grade carbide, it combines hardness, wear resistance and stability for reliable performance over many jobs. Its compact size and compatibility with a wide range of machines make it a versatile choice for workshops, job shops and production environments tackling miniature components.

  • Micro-threading precision: Executes MJ-thread profiles on small-diameter parts with high accuracy, delivering clean starts and consistent thread quality in tight cavities.
  • Durable BXC-grade carbide: Hard, wear-resistant material that maintains sharpness and reduces tool changes, even in tough metals and repeated threading cycles.
  • Left-hand MJ thread design: Optimized for left-handed threading tasks, offering reliable performance and straightforward setup across compatible machines.

With the Carmex Tiny Tool, you gain confident, repeatable results on miniature components, faster setup, and reduced downtime. Its robust materials, precise geometry, and broad machine compatibility help you improve threading quality, throughput and overall efficiency in small-part production and repair work.

Part Numbers

Protool Part Number
MIL4L150.8MJBXC
Brand
Carmex
Category
Tiny Tool Inserts
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 Tiny Tools - Small Threading MJ Tool (MIR)

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

Product SKUThread FormPitch or Pitch RangeMinimum DiameterReachGradeHolderPriceStock Order
MIR3L150.7MJBMK MJ0.73.215BMKSIM****H3£27.43 5 days
MIR3L150.7MJBXC MJ0.73.215BXCSIM****H3£25.00 In Stock
MIR4L150.8MJBMK MJ0.84.915BMKSIM****H4£21.08 5 days
MIR4L150.8MJBXC MJ0.84.915BXCSIM****H4£25.00 In Stock
MIR5L151.0MJBMK MJ1515BMKSIM****H5£27.48 In Stock
MIR5L151.0MJBXC MJ1515BXCSIM****H5£25.00 5 days
MIR4L150.8MJK20 MJ0.84.915K20SIM****H4£20.08 5 days
MIR3L150.7MJK20 MJ0.73.215K20SIM****H3£20.08 5 days
MIR5L151.0MJK20 MJ1515K20SIM****H5£20.08 5 days
MIL3L150.7MJBMK MJ0.73.215BMKSIM****H3£23.18 5 days
MIL3L150.7MJBXC MJ0.73.215BXCSIM****H3£21.10 5 days
MIL3L150.7MJK20 MJ0.73.215K20SIM****H3£20.08 5 days
MIL4L150.8MJBMK MJ0.84.915BMKSIM****H4£27.43 5 days
MIL4L150.8MJBXC ViewingMJ0.84.915BXCSIM****H4£21.10 5 days
MIL4L150.8MJK20 MJ0.84.915K20SIM****H4£20.08 5 days
MIL5L151.0MJBMK MJ1515BMKSIM****H5£21.50 5 days
MIL5L151.0MJBXC MJ1515BXCSIM****H5£21.10 5 days
MIL5L151.0MJK20 MJ1515K20SIM****H5£20.08 5 days

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