With some makes/models able to generate as much as 2,000 beats-per-minute, a Hand-Held Gas-Powered Post Driver is designed to sink metal T or round posts 3 feet into the ground in as little as 30 seconds. They weigh between 30 and 40 pounds, are powered by a two- or four-cycle engine, have air-cushion dampening and padded grips to minimize vibration and operator fatigue, and come with reducer sleeves of various sizes (either provided or available separately).