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

Carmex Carbide Tiny Tool - Threading - MIL - 60° Partial - K20 Grade - 4.1mm Minimum Diameter x 17mm Reach (Left Hand)

Carmex Carbide Tiny Tool - Threading - MIL - 60° Partial - K20 Grade - 4.1mm Minimum Diameter x 17mm Reach (Left Hand)

SKU:MIL4L17A60K20

The Carmex Carbide Tiny Tool – Threading – MIL – 60° Partial, K20 Grade, 4.1 mm Minimum Diameter x 17 mm Reach (Left Hand) is a compact carbide threading bar built for small-diameter work. Its MI... Read more ↓
M
K
N
S
ApplicationThreading (MIL)
Thread Form60° Partial
Pitch or Pitch Range(0.35-0.45mm) (72-56 TPI)
Minimum Diameter4.1
Reach17
GradeK20
View all specifications ↓
Download Cutting Data
£20.45
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

The Carmex Carbide Tiny Tool – Threading – MIL – 60° Partial, K20 Grade, 4.1 mm Minimum Diameter x 17 mm Reach (Left Hand) is a compact carbide threading bar built for small-diameter work. Its MIL 60° partial-profile geometry, 4.1 mm tool diameter, and 17 mm reach let you cut accurate threads in tight bores, with a left-hand orientation that supports common turning operations. Ideal for engineers, machinists, hobbyists, and shops tackling stainless steels and other demanding materials, this tool delivers dependable threading performance in restricted spaces.

Part of Carmex’s versatile line of partial-profile threading bars, this tool blends durability with broad applicability. The K20 grade provides a balanced mix of wear resistance and cutting efficiency, helping extend tool life and maintain consistent results across a range of materials.

  • MIL 60° Partial-profile threading for tight bores: Achieve accurate 60° threads in restricted spaces with a compact 4.1 mm diameter and 17 mm reach; left-hand orientation and compatibility with 55° profiles support common threading tasks.
  • Dual-grade, coated carbide for versatility: Two coating options—BXC TiN for low-speed cuts on stainless steels, and BMK with advanced triple-PVD coating for high heat resistance and smooth cutting across a wide range of materials.
  • Durable construction for reliable performance: Crafted for repeated use in demanding materials, delivering consistent thread form, reduced chatter, and extended tool life in stainless steels and other alloys.

This tiny threading tool is designed to enhance your workflow: you can complete small-diameter threads with fewer setups and rework, reach deep features without swapping tools, and choose a coating strategy that fits your material and speed requirements. The result is more predictable thread quality, faster cycle times, and overall improved productivity on challenging threading jobs.

Application Threading (MIL)
Thread Form 60° Partial
Pitch or Pitch Range (0.35-0.45mm) (72-56 TPI)
Minimum Diameter 4.1
Reach 17
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.

★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
Bill
★★★★★
first place we look
honest about stock and prices are competitive.
Phil
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
Graham
★★★★★
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.
Jeremy

Full Range: Carmex Carbide Tiny Tools - Small Threading Partial Profile 60° Tool (MIR)

View full collection →

You are viewing MIL4L17A60K20. Click any other SKU to view its full details.

Product SKUPitch or Pitch RangeMinimum DiameterReachGradeHolderPriceStock Order
MIR1.5L6A60BMK (0.35-0.45mm) (72-56 TPI)1.26BMKSIM****H3£31.48 5 days
MIR1.5L6A60BXC (0.35-0.45mm) (72-56 TPI)1.26BXCSIM****H3£28.60 In Stock
MIR1L5A60BMK (0.25-0.35mm) (100-72 TPI)1.45BMKSIM****H3£31.48 5 days
MIR1L5A60BXC (0.25-0.35mm) (100-72 TPI)1.45BXCSIM****H3£28.60 In Stock
MIR2L8A60BMK (0.45-0.7mm) (56-32 TPI)2.18BMKSIM****H3£27.35 5 days
MIR2L8A60BXC (0.45-0.7mm) (56-32 TPI)2.18BXCSIM****H3£24.93 5 days
MIR3L15A60BMK (0.7-1.0mm) (32-24 TPI)3.215BMKSIM****H3£27.35 5 days
MIR3L15A60BXC (0.7-1.0mm) (32-24 TPI)3.215BXCSIM****H3£24.93 5 days
MIR4L15A60BMK (0.8-1.0mm) (32-24 TPI)4.115BMKSIM****H4£27.35 In Stock
MIR4L15A60BXC (0.8-1.0mm) (32-24 TPI)4.115BXCSIM****H4£24.93 In Stock
MIR4L17A60BMK (0.35-0.45mm) (72-56 TPI)4.117BMKSIM****H4£28.00 5 days
MIR4L17A60BXC (0.35-0.45mm) (72-56 TPI)4.117BXCSIM****H4£25.48 5 days
MIR5L15A60BMK (1.0-1.25mm) (24-20 TPI)5.115BMKSIM****H5£28.00 5 days
MIR5L15A60BXC (1.0-1.25mm) (24-20 TPI)5.115BXCSIM****H5£25.48 In Stock
MIR5L22A60BMK (1.0-1.25mm) (24-20 TPI)5.122BMKSIM****H5£29.35 In Stock
MIR5L22A60BXC (1.0-1.25mm) (24-20 TPI)5.122BXCSIM****H6£26.68 In Stock
MIR6L15A60BMK (1.0-1.5mm) (24-16 TPI)615BMKSIM****H6£28.55 5 days
MIR6L15A60BXC (1.0-1.5mm) (24-16 TPI)615BXCSIM****H6£25.93 In Stock
MIR6L22A60BMK (1.0-1.5mm) (24-16 TPI)622BMKSIM****H6£30.00 5 days
MIR6L22A60BXC (1.0-1.5mm) (24-16 TPI)622BXCSIM****H6£27.28 In Stock
MIR8L22A60BMK (1.0-2.0mm) (24-13 TPI)822BMKSIM****H8£34.30 5 days
MIR8L22A60BXC (1.0-2.0mm) (24-13 TPI)822BXCSIM****H8£31.18 In Stock
MIR1L5A60K20 (0.25-0.35mm) (100-72 TPI)1.45K20SIM****H3£27.18 5 days
MIR4L17A60K20 (0.35-0.45mm) (72-56 TPI)4.117K20SIM****H4£24.20 5 days
MIR5L15A60K20 (1.0-1.25mm) (24-20 TPI)5.115K20SIM****H5£24.20 5 days
MIR5L22A60K20 (1.0-1.25mm) (24-20 TPI)5.122K20SIM****H6£25.35 5 days
MIR6L15A60K20 (1.0-1.5mm) (24-16 TPI)615K20SIM****H6£24.60 5 days
MIR3L15A60K20 (0.7-1.0mm) (32-24 TPI)3.215K20SIM****H3£23.65 5 days
MIR4L15A60K20 (0.8-1.0mm) (32-24 TPI)4.115K20SIM****H4£23.65 5 days
MIR6L22A60K20 (1.0-1.5mm) (24-16 TPI)622K20SIM****H6£25.90 5 days
MIR2L8A60K20 (0.45-0.7mm) (56-32 TPI)2.18K20SIM****H3£23.65 5 days
MIR1.5L6A60K20 (0.35-0.45mm) (72-56 TPI)1.26K20SIM****H3£27.18 5 days
MIR8L22A60K20 (1.0-2.0mm) (24-13 TPI)822K20SIM****H8£29.60 5 days
MIR5L15A60TNX (1.0-1.25mm) (24-20 TPI)5.115TNXSIM****H5£25.83 5 days
MIR5L22A60TNX (1.0-1.25mm) (24-20 TPI)5.122TNXSIM****H6£27.05 5 days
MIR6L15A60TNX (1.0-1.5mm) (24-16 TPI)615TNXSIM****H6£26.30 5 days
MIR4L15A60TNX (0.8-1.0mm) (32-24 TPI)4.115TNXSIM****H4£25.30 5 days
MIR6L22A60TNX (1.0-1.5mm) (24-16 TPI)622TNXSIM****H6£27.65 5 days
MIR8L22A60TNX (1.0-2.0mm) (24-13 TPI)822TNXSIM****H8£31.63 5 days
MIR3L14A60BXC (0.25-0.35mm) (100-72 TPI)3.214BXCSIM****H3£24.93 5 days
MIL1.5L6A60BMK (0.35-0.45mm) (72-56 TPI)1.26BMKSIM****H3£31.48 5 days
MIL1.5L6A60BXC (0.35-0.45mm) (72-56 TPI)1.26BXCSIM****H3£28.60 5 days
MIL1.5L6A60K20 (0.35-0.45mm) (72-56 TPI)1.26K20SIM****H3£27.18 5 days
MIL1L5A60BMK (0.25-0.35mm) (100-72 TPI)1.45BMKSIM****H3£31.48 5 days
MIL1L5A60BXC (0.25-0.35mm) (100-72 TPI)1.45BXCSIM****H3£28.60 5 days
MIL1L5A60K20 (0.25-0.35mm) (100-72 TPI)1.45K20SIM****H3£27.18 5 days
MIL2L8A60BMK (0.45-0.7mm) (56-32 TPI)2.18BMKSIM****H3£34.30 5 days
MIL2L8A60BXC (0.45-0.7mm) (56-32 TPI)2.18BXCSIM****H3£31.18 5 days
MIL2L8A60K20 (0.45-0.7mm) (56-32 TPI)2.18K20SIM****H3£29.60 5 days
MIL3L14A60BXC (0.25-0.35mm) (100-72 TPI)3.214BXCSIM****H3£21.08 5 days
MIL3L15A60BMK (0.7-1.0mm) (32-24 TPI)3.215BMKSIM****H3£27.35 5 days
MIL3L15A60BXC (0.7-1.0mm) (32-24 TPI)3.215BXCSIM****H3£24.93 In Stock
MIL3L15A60K20 (0.7-1.0mm) (32-24 TPI)3.215K20SIM****H3£23.65 5 days
MIL4L15A60BMK (0.8-1.0mm) (32-24 TPI)4.115BMKSIM****H4£27.35 5 days
MIL4L15A60BXC (0.8-1.0mm) (32-24 TPI)4.115BXCSIM****H4£24.93 5 days
MIL4L15A60K20 (0.8-1.0mm) (32-24 TPI)4.115K20SIM****H4£23.65 5 days
MIL4L15A60TNX (0.8-1.0mm) (32-24 TPI)4.115TNXSIM****H4£25.30 5 days
MIL4L17A60BMK (0.35-0.45mm) (72-56 TPI)4.117BMKSIM****H4£23.65 5 days
MIL4L17A60BXC (0.35-0.45mm) (72-56 TPI)4.117BXCSIM****H4£21.53 5 days
MIL4L17A60K20 Viewing(0.35-0.45mm) (72-56 TPI)4.117K20SIM****H4£20.45 5 days
MIL5L15A60BMK (1.0-1.25mm) (24-20 TPI)5.115BMKSIM****H5£28.00 5 days
MIL5L15A60BXC (1.0-1.25mm) (24-20 TPI)5.115BXCSIM****H5£25.48 In Stock
MIL5L15A60K20 (1.0-1.25mm) (24-20 TPI)5.115K20SIM****H5£24.20 5 days
MIL5L15A60TNX (1.0-1.25mm) (24-20 TPI)5.115TNXSIM****H5£25.83 5 days
MIL5L22A60BMK (1.0-1.25mm) (24-20 TPI)5.122BMKSIM****H5£29.35 5 days
MIL5L22A60BXC (1.0-1.25mm) (24-20 TPI)5.122BXCSIM****H6£26.68 In Stock
MIL5L22A60K20 (1.0-1.25mm) (24-20 TPI)5.122K20SIM****H6£25.35 5 days
MIL5L22A60TNX (1.0-1.25mm) (24-20 TPI)5.122TNXSIM****H6£27.05 5 days
MIL6L15A60BMK (1.0-1.5mm) (24-16 TPI)615BMKSIM****H6£28.55 5 days
MIL6L15A60BXC (1.0-1.5mm) (24-16 TPI)615BXCSIM****H6£25.93 5 days
MIL6L15A60K20 (1.0-1.5mm) (24-16 TPI)615K20SIM****H6£24.60 5 days
MIL6L15A60TNX (1.0-1.5mm) (24-16 TPI)615TNXSIM****H6£26.30 5 days
MIL6L22A60BMK (1.0-1.5mm) (24-16 TPI)622BMKSIM****H6£30.00 5 days
MIL6L22A60BXC (1.0-1.5mm) (24-16 TPI)622BXCSIM****H6£27.28 5 days
MIL6L22A60K20 (1.0-1.5mm) (24-16 TPI)622K20SIM****H6£25.90 5 days
MIL6L22A60TNX (1.0-1.5mm) (24-16 TPI)622TNXSIM****H6£27.68 5 days
MIL8L22A60BMK (1.0-2.0mm) (24-13 TPI)822BMKSIM****H8£34.30 5 days
MIL8L22A60BXC (1.0-2.0mm) (24-13 TPI)822BXCSIM****H8£31.18 5 days
MIL8L22A60K20 (1.0-2.0mm) (24-13 TPI)822K20SIM****H8£29.60 5 days
MIL8L22A60TNX (1.0-2.0mm) (24-13 TPI)822TNXSIM****H8£31.63 5 days

Complete Your Project

with tools we think you'll like