With two different styles, and a choice of controllers, Zagar offers feed units to match your application. Our Manual Quill (MQ) ball screw units use servomotors. Furthermore, they provide precision and maximum thrust efficiency with no offset loading. Zagar Thruster units are actuated by hydraulic and/or pneumatic operation. Additionally, the units provide both rapid advance and controlled feed. This makes it ideal for drilling applications. A reversing brake motor makes tapping applications also very effective. Controllers include all popular industry choices. These choices can be made by the customer and integrated by Zagar for a full holemaking solution.
http://www.youtube.com/watch?v=3VkqSJJHvEA for Zagar Drill/Tap machine demo with quill feed unit.