This tool holder is perfect for my carving machine .It is made with high-quality materials that provide durability and strength. As my tests showed, this holder delivers smooth and precise results. The ER40 design allows for easy and secure tool changes. The only downside is that it can be a bit pricey compared to other options on the market. Nevertheless, the overall performance and reliability of this holder make it worth the INVESTMENT. Industrial and Scientific users will definitely appreciate its value..