Description Stihl In-Tree Saw, Advanced Arborist, Engine Specifications: 1.8 kW, 2.41 hp, 35.2 cu-cm Engine Displacement, 310 Cu-cm Fuel Tank Capacity, Gas Fuel, 220 Cu-cm Oil Tank, 63 PS3 Oilomatic Chain Bar/Chain, Adjustable Automatic Bar Oiler, Master Control Lever Control, High-Tech Polymer Material, 3.71 kg Powerhead Weight