1. Small size and easy to use. 2. High centering accuracy and large clamping range. 3. Made of high-quality steel, with high hardness, wear resistance and durability. 4. The chuck has two installation methods: short-cylinder center installation and threaded installation, which are simple, fast and convenient. 5. The chuck can be used for ordinary lathes, grinders, milling machines and most woodworking lathes, ordinary lathes and industrial machinery lathes on the market., Manufacturer: MINING