Micro-Grain Carbide


All NTK cutting tools are manufactured at our plant in Komaki, Japan.
Our turning and milling tools for machining with ceramic or CBN tools are manufactured in Europe. Tool holders for precision cutting tools (carbide, cermet, PKD) are manufactured in Japan.


Our products are subject to the highest quality standards and are certified according to DIN 9001 and DIN 14001.
Our continuously high-quality controls ensure this quality.

Micro-Grain Carbide

NTK Micro-Grain Carbide is characterized by an extremely small grain size (less than 1μm).

This achieves high toughness with a perfect hardness at the same time. This effects extremely sharp cutting edges.

Compared to the conventional “Fine-Grain Carbide”, it offers excellent wear and tear resistance at high temperatures. NTK Micro-Grain Carbide with PVD coatings provides more resistance against wear.

About us

NGK Sparkplug Europe GmbH in Ratingen Germany has been in existence since the end of the seventies and is the European headquarter of the Japanese group "NGK Spark Plugs Co.Ltd", with around 12,000 employees, who were already established in the mid-1930s.

NTK Cutting Tools


  • NGK Spark Plug Europe GmbH
  • Harkortstrasse 41
  • D-40880 Ratingen