The Waratah Thumpa pneumatic post driver provides an easy way to drive GalStar posts and Gripfast trellis posts into virtually any terrain faster than a manual driver, saving time and money. Air-driven striking dolly does all the hard work and can change from driving a GalStar Extreme post to a GalStar MaxY post in seconds with a simple twist and release system. Can also be attached to a mechanically assisted device on a vehicle to assist lifting the driver on and off posts.