Please log in here to access all benefits, including promotional discounts and faster checkouts.

Carmex Carbide Tiny Tool - Threading - MIR - UNJ (UNJC,UNJF,UNJEF,UNJS) - BMK Grade - 3.2mm Minimum Diameter x 15mm Reach

SKU:MIR3L1532UNJBMK

The Carmex Carbide Tiny Tool – Small Threading UNJ Tool (MIR) is a precision cutting tool designed for small threading applications. It employs a UNJ thread design to deliver high-accuracy thread... Read more ↓
P
M
K
N
S
H
ApplicationThreading (MIR)
Thread FormUNJ (UNJC UNJF UNJEF UNJS)
Pitch or Pitch Range32
Minimum Diameter3.2
View all specifications ↓
Download Cutting Data
£21.08
Prices shown ex. VAT
5 days estimated lead time — subject to availability
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Carmex Carbide Tiny Tool – Small Threading UNJ Tool (MIR) is a precision cutting tool designed for small threading applications. It employs a UNJ thread design to deliver high-accuracy threads on tiny components, making it ideal for assemblies where fit and reliability matter. Crafted from premium BMK-grade carbide, this miniature tool balances strength, wear resistance, and long tool life in a compact form factor.

With a 3.2 mm minimum diameter and a 15 mm reach, it accesses tight features and confined areas without sacrificing rigidity. It’s compatible with a broad range of machines and systems, making it a versatile choice for engineers, machinists, and technicians across both professional and hobbyist settings.

  • UNJ threading precision: Delivers high-accuracy UNJ threads, including UNJC, UNJF, UNJEF, and UNJS variants, for reliable fits on small parts and critical assemblies.
  • BMK-grade carbide durability: Premium carbide construction provides excellent wear resistance, rigidity, and long tool life even in repetitive small-threading tasks.
  • Compact reach for tight features: 3.2 mm minimum diameter with 15 mm reach to thread inside restricted areas without sacrificing cut quality or rigidity.

This tool helps streamline your small-threading work by delivering consistent, precise threads in tight spaces, reducing setup time and rework, and enabling you to complete complex assemblies with confidence. Its durable carbide and broad machine compatibility mean fewer tool changes and reliable performance across multiple projects, from prototype runs to production tasks.

Part Numbers

Protool Part Number
MIR3L1532UNJBMK
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 UNJ Tool (MIR)

View full collection →

You are viewing MIR3L1532UNJBMK. Click any other SKU to view its full details.

Product SKUPitch or Pitch RangeMinimum DiameterReachGradeHolderPriceStock Order
MIR3L1532UNJBMK Viewing323.215BMKSIM****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 20518BMKSIM****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

Complete Your Project

Tooling and consumables that work with this product.
All 12 →