Star's newest SR-20RIV machine has the most advanced features and broad range of machining variations including a 27-position tool station which can accommodate up to 41 tools including full B-axis with 3-6 tools for cross/face drilling/milling. The SR-20RIV has a tool post especially designed for backworking, equipped with a Y-axis control function as standard. Both the main and sub spindles use a built-in motor and built-in sensor for improving indexing accuracy. This machine is designed with complex machining functions adaptable to multiple industries. View a video of this machine in action at: www.starcnc.com/products/SR-20RIV.html