In fact, they are saying the same tool. The component is tungsten carbide (WC) and took part in the P type, M type, and K type. Micro grain carbide tool is made of tungsten carbide and adding some elements to to increase the hardness and abrasion resistance. Super hard alloy cutting tools is named by Japanese, which is also tungsten carbide cutter.
P, M, and K types are divided according to the different turning material.
HSSis suitable to produce drill bit cutters. Tungsten carbide is suitable for small cutting amount, good surface roughness or cutting high hardness material.
Tungsten carbide steel is low cost, which applicable range is wider. But in some traditional industries, like automobile/motorcycle industries, pick only one type from P,K, and M type. .. but it is not suitable for optical and optoelectronic industry. Those industries mostly require a high surface roughness (mirror finishing) and the shape accuracy of the tool. Hence the basic knowledge of the diamond tool is very important. The general schools have detailed theory only for HSS high speed steel, tungsten steel tool and cutting tool. But we only know and learn the application and characteristics of diamond toolafter we enter into the community.Not only tungsten carbide or the HSS material, but also you can consider the CBN cutters or diamond tools for non-ferrous metals, the benefits are reducing tool change time and its superior performance and tool life.
Any related questions about various cutting tools and diamond cutter, please feel free to ask us, we would be glad to solve your problem.