The MS 311 Petrol Chainsaw is a full sized Chainsaw that can drive the larger 3/8 pitch saw chain - as used on our pro Chainsaws. It can handle felling firewood in medium density forests and is a great option for farmers. With our 2-MIX engine technology, you receive higher fuel economy for longer run times. The MS 311 also has larger fuel and oil tanks allowing you to work longer before refueling.