ECHO 10 inches Earth Auger (99944900200) is best suited for drilling larger post holes over 4x4 and up to 6x6 posts or for setting plants. Its steel shaft construction is durable against light to semi-rocky or heavy soils. The flex coil is designed to absorb ground shock better over other augers while slowing the impact between the blade and rocks or other debris within the soil to deliver better handling and operation. The fish tail point allows for easier starting of the drill, prevents slipping and delivers better control and efficiency during operation, while helping to reduce wear on the engine and transmission.