【Indispensable tools for woodworking】: They can be used as adapters for cutting knives, are suitable for a variety of cutting knives and meet the requirements of woodworking. 【3 models】 : The set includes a total of 6 pieces of collet chucks, which are divided into three sizes: 6mm, 6.35mm and 8mm, 2 pieces for each size. Comprehensive templates can meet your different needs. 【Good quality】: The chuck is made of high-quality carbon steel with high hardness and high wear resistance. It is not easy to corrode and can be used continuously for a long time. 【Easy to use】The chuck only needs to be cleaned with petrol or cleaning agent before installation; it is particularly easy to use. 【Diverse application possibilities】: Tool collet adapter suitable for engraving machines, wood milling machines, cutting engraving machines, etc. Product description 【Description】 1. When loading the knife, clean the chuck and pressure cap with detergent (gasoline is also allowed). Make sure the tools are