The Jet Tools 1700170 Spindle Assembly is designed for models 406, 4406, and 4408, providing precision and reliability in milling applications. Constructed from high-quality materials, this spindle assembly ensures durability and optimal performance under various conditions. It supports high-speed operations, making it ideal for professional machining tasks. This assembly is compliant with industry standards, ensuring compatibility and seamless integration with Jet milling machines, enhancing your workshop's productivity.