Detailed Product Description earth auger/ground drill :The host Paramater of the ground drill: Small gasoline engine:2.3hp ,2.6hp Engine ... 150x28x130, 200x38x180, 250x48x230, 300x60x280Drill bit type: twist drill ,auger drill, wedge-shape prismatic drill.Installation of the spiral blade: signle spiral blade, ... geological survey and geophysical detector, fish on winter ice by drilling holes, etc.