The sherpa stgd520 earth auger is powered by a reliable 52cc 2 stroke petrol engine which allows you to drill professional quality and accurate holes ready for installing fence posts large trees or shrubs and much more the sherpa stgd520 kit comes complete with three auger attachments in popular sizes 100mm 150mm 200mm 4 6 and 8 inches these drill bits give you the scope to undertake a full range of garden and construction tasks supplied with 52cc petrol earth auger power head 100mm