GREENLEE HPD-T-U Sign Post Driver w/ Integral Trigger w/ Universal Post Adapter

Can drive a variety of post sizes from small delineater posts up to 3-1/2 IN round posts including square, U channel, breakaway stubs, round, T fence, and wood;Quick change front head design accommodates adapters for different types of posts;Dual guide handles for good directional control;A deep post opening and smooth operation ensures that the driver will not jump off of posts;Available with integral trigger or remote on/off valve;U.S. Patent #6,626,247