NS Tool  - End Mills for the USA
High quality for high precision



With NS Tool Mikron Tool has a found partner which perfectly complements its own line of products. In business for over 60 years, this Japanese tool manufacturer bases its high level of expertise on decades of experience.

Today they specialize in the development and manufacturing of high-precision small end mills made of solid carbide in the diameter range of 0.01 mm to 40 mm (0.00039" - 1.5748") with milling solutions for the widest variety of materials and applications. The company focuses on the smallest diameters, the highest milling output and simultaneously on high surface quality.

Exactly like Mikron Tool or DC Swiss, NS Tool also offers a range of tools for the machining of difficult-to-machine materials such as stainless steels, titanium and hardened steels. 

Product range / overview

NS Tool offers an extensive set of end mills:

  • Square end mills
  • Taper end mills
  • Radius end mills
  • Ball end mills
  • Taper ball end mills
  • Taper radius end mills
  • Roughing/finishing cutters

For the widest variety of machining using roughing and finishing cutters

  • Slot milling
  • Side milling
  • Face milling
  • Plunge milling
  • Contour milling
  • Copy milling

The Highlights

Examples: (Klick on the product to go to the download domain)Examples: (Klick on the product to go to the download domain)NS Tool offers a multitude of solutions for challenging machining conditions. For example:

Difficult to machine materials

End-milling into challenging work material to machine like 300 and 400 series stainless steels, PH stainless steels, duplex stainless steels, Titanium alloys or nickel chromium alloys (Superalloys) widely used in medical and dental industry, in aerospace industry as well as in food industry.

Example: (Klick on the product to go to the download domain)

Pre-hardened and hardened steels

Mugen Premium coated End-mill for efficent machining results in pre-hardened and hardened materials up to 65HRC. Available on square type, corner radius type and ball end-mill type for a wide range of die and mould machining application where work materlia hardness is a challenge.

Examples: (Klick on the product to go to the download domain)

Micro End Milling

Strong know-how on the micro end-milling field for mirror finishing application. NS Tool offers an exclusive CBN and PCD micro End-Mill line on square, radius and ball end-mill types.

Ideal when machining mould cavity, for example, injection of LED or micro gear where the highest surface finishing is required and are tipically made of carbid or tool steel with hardness greater than 55HRC.

Examples: (Klick on the product to go to the download domain)

CBN End Mill Series

  • CBN Radius End-Mill Series (SSR and SSF)
  • CBN Ball End Mill Series (SSP and SSB

PCD End Mills

Non ferrous work materials

Diamond coated, square, radius and ball end-mills in a wide range of diameter and cutting depth.

Ideal for aluminum, aluminum alloys, cast aluminum, copper, graphite and fiber glass reinforced plastic. Effective chip removal is guaranteed thank to the optimized flute design. Tools for highest chip removal rate, tools for highest surface quality .

Examples: (Klick on the product to go to the download domain)

The Applications

The strengths of end mills from NS Tool lie in the area of micro-milling, the machining of difficult-to-machine materials and the milling of high-gloss surfaces. The tools are used in all segments where efficient milling operations are required and a high-quality milling surface is indispensable: e.g. medical technology, watch industry, aerospace industry, food industry, chemical and crude oil industry, and petrochemistry.

Mould and die Industry

  • Material: hardened tool steel

Milling mould cavity for DVD case (mirror finish, tool steel STRAVAX hardened at 52HRC) end milling with MHRH430R

  • Material: hardened steel

Milling mould cavity for LED Lamp Housing ( mirror finish, tool steel DH31-S hardened at 48HRC)  end milling with MHBTNH345

  • Material: hardened steel

punch and die (roughing and finishing, powdered HSS HAP40, hardened at 65HRC) end milling with MRBH230

  • Material: hardened steel

mould cavity for game console (mirror finish, tool steel DC53, hardened at 62 HRC) milling with CBN ball end mill SSB200

Aerospace Industry

  • Material: Superalloy

Blisk* or bladed rings (milling nickel based superalloy, Inconel 718, Nr. 2.4668) end  milling with MSXH440R

* (Bladed Integrated Disk)

Medical and dental Industry

  • Material: Titanium

medical devices (Titanium Gr. 5, TiAl6V4, Nr. 3.7164) end milling with MSXH440R

  • Material: Stainless steel

prosthetic joint (austenitic stainless steel,  AISI 316L, Nr.: 1.4435) end milling with MSXH440R

Machine building /Material handling

  • Material: Steel

fixturing (pocket milling and slot milling, high carbon steel S50C) high efficient cutting with MSZ345

  • Material: Stainless steel

fixturing (pocket milling and slot milling, austenitic stainless steel, AISI 304, Nr.: 1.4301) high efficient cutting with MSZ345

Consulting and stock in the USA

With the tool specialists from Mikron Tool, a qualified engineering team is available to US customers. A network of representatives and tool distributors guarantees customer-oriented technical support in all states.

Find your representative and distributor here.

The range of standard products from NS Tool includes more than 8000 tools, all available from stock in Japan. For quick and hassle free delivery in the US, most of these tools are available directly from our stock in Monroe, CT.

Link / Downloads

This link goes directly to the download area (menu bar) where you will find a multitude of brochures for individual product lines.

For additional information, please contact us here.