High-speed cutting tools, especially high-speed rotating tool, from the guarantee of processing accuracy and operational safety considerations, require the tool and the handle have better quality and performance. For the tool, the slimness ratio is less than 10 times better. There are tungsten carbide tools, CBN tools and titanium tungsten carbide cutting tools. For the handle, the required dynamic balance is less than 2.5G the following, HSK, BBT (BTF-B) and some special knife handle can well meet the above requirements.