We present to you our SENWART CS660 gasoline chainsaw. We have designed the chainsaw with the demanding professional in mind. It is equipped with a 2 stroke engine with 7.0HP / 9,500 rpm and a displacement of 92cc. Ideal for cutting large-diameter logs, forestry tasks, and for demanding high performance work. Its fuel consumption gives it performance with superior resistance and power. Our products maximize the productivity of our customers and provide excellent safety and comfort through the ergonomic design of each tool. 1. The engine case is made of magnesium alloy or aluminum alloy, CNC center machining, and good precision. 2. This chainsaw is a professional grade tool with a high quality crankshaft and carburetor for overall performance. 3. The engine provides maximum power at 9,500rpm and matches the output power at high speed to improve the working efficiency. 4. The plastic material is made of high quality nylon reinforced material with good heat resistance and physical strength. 5. Precise testing and adjustments ensure that the engine works stably at the right fuel consumption and temperature and that it will not shut down at high temperatures or be difficult to start under long-term high speed operation. MODEL: CS660 Engine type : Single Cylinder, Two-stroke, Air-cooling Cylinder diameter : 54mm*40mm Power : 5.2kW / 7.0HP Displacement : 91.6cc Working speed : 12,500rpm Idle speed : 3,300rpm Fuel tank : 825ml Oil tank : 360ml Fuel mixture ratio : 25:1(Gasoline 25 : 2-cycle Oil 1) Standard bar lengths : 36 inch/91.5cm Chain pitch/gauge : .404"/.063" Optional bar lengths : 30" - 42" Weight (without bar/chain) : 10.2kg