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Carmex Carbide Tiny Tool - Threading - MIL - 55° Partial - K20 Grade - 4.1mm Minimum Diameter x 15mm Reach (Left Hand)

Carmex Carbide Tiny Tool - Threading - MIL - 55° Partial - K20 Grade - 4.1mm Minimum Diameter x 15mm Reach (Left Hand)

SKU:MIL4L15A55K20

Carmex Carbide Tiny Tool is a compact left-handed threading bar engineered for precise 55° threads in small bores. Its 4.1 mm minimum diameter and 15 mm reach help you access tight work areas whi... Read more ↓
M
K
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ApplicationThreading (MIL)
Thread Form55° Partial
Pitch or Pitch Range(0.5-1.0mm) (48-24 TPI)
Minimum Diameter4.1
Reach15
GradeK20
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£23.65
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5 days estimated lead time — subject to availability
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Carmex Carbide Tiny Tool is a compact left-handed threading bar engineered for precise 55° threads in small bores. Its 4.1 mm minimum diameter and 15 mm reach help you access tight work areas while delivering reliable, repeatable thread quality for demanding small-bore applications.

This tool family supports two high-performance coating options to match material and speed needs. The BXC grade uses a PVD TiN coating to enable steady cutting at lower speeds, making it particularly effective with stainless steels (ISO P30-P50 / K25-K40). The BMK grade features a sub-micron structure with a triple PVD coating for exceptional heat resistance and smooth cutting across a broad material range, serving as a general-purpose option for challenging jobs.

  • 55° partial-profile threading compatibility: Designed to produce precise 55° threads in tight bores, with a minimum bore diameter of 1.2 mm (0.05") to handle narrow passages in a variety of components.
  • Two performance-grade coating options: BXC TiN-coated grade delivers reliable cutting at low speeds for stainless steels; BMK triple-coated, sub-micron grade offers high heat resistance and smooth cutting for demanding materials and longer tool life.
  • Compact left-handed carbide with fixed reach: 4.1 mm minimum diameter and 15 mm reach plus left-hand threading provide access to confined spaces while maintaining consistent, durable performance across materials.

Together, the Carmex Tiny Tool delivers dependable, repeatable threading results in tight spaces, with coating choices that optimize performance for stainless steels and other materials. Its precise geometry and robust carbide construction help you complete small-diameter threads efficiently, reducing setup time and rework while supporting consistent quality across jobs.

Application Threading (MIL)
Thread Form 55° Partial
Pitch or Pitch Range (0.5-1.0mm) (48-24 TPI)
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 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 Partial Profile 55° Tool (MIR)

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You are viewing MIL4L15A55K20. Click any other SKU to view its full details.

Product SKUPitch or Pitch RangeMinimum DiameterReachGradeHolderPriceStock Order
MIR3L15A55BMK (0.5-1.0mm) (48-24 TPI)3.215BMKSIM****H3£27.35 5 days
MIR3L15A55BXC (0.5-1.0mm) (48-24 TPI)3.215BXCSIM****H3£24.93 5 days
MIR4L15A55BMK (0.5-1.0mm) (48-24 TPI)4.115BMKSIM****H4£27.35 5 days
MIR4L15A55BXC (0.5-1.0mm) (48-24 TPI)4.115BXCSIM****H4£24.93 5 days
MIR5L15A55BMK (0.5-1.25mm) (48-24 TPI)5.115BMKSIM****H5£28.00 In Stock
MIR5L15A55BXC (0.5-1.25mm) (48-24 TPI)5.115BXCSIM****H5£25.48 5 days
MIR5L22A55BMK (0.5-1.25mm) (48-20 TPI)5.122BMKSIM****H5£29.35 5 days
MIR5L22A55BXC (0.5-1.25mm) (48-20 TPI)5.122BXCSIM****H5£26.68 5 days
MIR6L15A55BMK (0.5-1.5mm) (48-16 TPI)615BMKSIM****H6£28.55 In Stock
MIR6L15A55BXC (0.5-1.5mm) (48-16 TPI)615BXCSIM****H6£25.93 In Stock
MIR6L22A55BMK (0.5-1.5mm) (48-16 TPI)622BMKSIM****H6£30.00 5 days
MIR6L22A55BXC (0.5-1.5mm) (48-16 TPI)622BXCSIM****H6£27.28 In Stock
MIL6L22A55BXC (0.5-1.5mm) (48-16 TPI)622BXCSIM****H6£27.28 In Stock
MIR5L15A55K20 (0.5-1.25mm) (48-24 TPI)5.115K20SIM****H5£24.20 5 days
MIR4L15A55K20 (0.5-1.0mm) (48-24 TPI)4.115K20SIM****H4£23.65 5 days
MIR6L22A55K20 (0.5-1.5mm) (48-16 TPI)622K20SIM****H6£25.90 5 days
MIR6L15A55K20 (0.5-1.5mm) (48-16 TPI)615K20SIM****H6£24.60 5 days
MIR3L15A55K20 (0.5-1.0mm) (48-24 TPI)3.215K20SIM****H3£23.65 5 days
MIR5L22A55K20 (0.5-1.25mm) (48-20 TPI)5.122K20SIM****H5£25.35 5 days
MIR6L22A55TNX (0.5-1.5mm) (48-16 TPI)622TNXSIM****H6£27.65 5 days
MIR6L15A55TNX (0.5-1.5mm) (48-16 TPI)615TNXSIM****H6£26.30 5 days
MIL6L22A55BXC (0.5-1.5mm) (48-16 TPI)622BXCSIM****H6£27.28 In Stock
MIL3L15A55BMK (0.5-1.0mm) (48-24 TPI)3.215BMKSIM****H3£27.35 5 days
MIL3L15A55BXC (0.5-1.0mm) (48-24 TPI)3.215BXCSIM****H3£24.93 5 days
MIL3L15A55K20 (0.5-1.0mm) (48-24 TPI)3.215K20SIM****H3£23.65 5 days
MIL4L15A55BMK (0.5-1.0mm) (48-24 TPI)4.115BMKSIM****H4£27.35 5 days
MIL4L15A55BXC (0.5-1.0mm) (48-24 TPI)4.115BXCSIM****H4£24.93 In Stock
MIL4L15A55K20 Viewing(0.5-1.0mm) (48-24 TPI)4.115K20SIM****H4£23.65 5 days
MIL5L15A55BMK (0.5-1.25mm) (48-24 TPI)5.115BMKSIM****H5£28.00 5 days
MIL5L15A55BXC (0.5-1.25mm) (48-24 TPI)5.115BXCSIM****H5£25.48 5 days
MIL5L15A55K20 (0.5-1.25mm) (48-24 TPI)5.115K20SIM****H5£24.20 5 days
MIL5L22A55BMK (0.5-1.25mm) (48-20 TPI)5.122BMKSIM****H5£29.35 5 days
MIL5L22A55BXC (0.5-1.25mm) (48-20 TPI)5.122BXCSIM****H5£26.68 5 days
MIL5L22A55K20 (0.5-1.25mm) (48-20 TPI)5.122K20SIM****H5£25.35 5 days
MIL6L15A55BMK (0.5-1.5mm) (48-16 TPI)615BMKSIM****H6£28.55 5 days
MIL6L15A55BXC (0.5-1.5mm) (48-16 TPI)615BXCSIM****H6£25.93 5 days
MIL6L15A55K20 (0.5-1.5mm) (48-16 TPI)615K20SIM****H6£24.60 5 days
MIL6L15A55TNX (0.5-1.5mm) (48-16 TPI)615TNXSIM****H6£26.30 5 days
MIL6L22A55BMK (0.5-1.5mm) (48-16 TPI)622BMKSIM****H6£30.00 5 days
MIL6L22A55K20 (0.5-1.5mm) (48-16 TPI)622K20SIM****H6£25.90 5 days
MIL6L22A55TNX (0.5-1.5mm) (48-16 TPI)622TNXSIM****H6£27.68 5 days

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