Main Use:For Landscaping; Tree planting, retaining wall or foundation pier holes. Fencing, Post holes. Soil testing. Construction holes. Product Information:On wheels for easy moving. Hydraulic drive for hard ground. Forward / Reverse control for auger. 4- stroke motor. Easy and efficient to use. Dial before you dig. Specifications: Auger sizes available: 100mm (4"), 150mm (6"), 225mm (10") Extension shaft available: to dig to 1.8m (6")