The Heavy-Hitter Post Pounder is available as side-mast trailer, side-mast three-point-hitch, center-mast skid steer, and center-mast three-point-hitch models. Features include: (1) a 660-pound hammer, (2) four head mounting positions, (3) a 64-inch stroke, (4) 16 inches of side-to-side movement for added post-positioning flexiblity, (5) a PTO or Honda motor-driven hydraulic system (trailer model) or a PTO pump system (three-point-hitch models), and pump or 9 horsepower engine, and (6) a joystick control lever that activates the two hydraulic tilt cylinders and directs the four-way tilt mast, allowing accurate post alignment in uneven terrain.