Professional chain saw designed for heavy duty use in extreme conditions. High engine power combined with relatively low weight makes it ideal for use in dense stands and cutting hard wood. Available in guide bar lengths 30"/76cm to 42"/107cm. Engine type : Single Cylinder, Two-stroke, Air-cooling Fuel mixture ratio : 25:1(Gasoline 25 : 2-cycle Oil 1) Cylinder diameter : 54mm*40mm Standard bar lengths : 36" (91.4cm) Power : 5.2kW (7.0HP) Optional bar lengths : 30"/33"/36"/42" Displacement : 91.6cc Chain pitch : 3/8" / .404" Working speed : 9500rpm Chain Gauge : .063" Idle speed : 3000rpm Net weight (without bar/chain) : 10kg (22lb) Ignition : CDI Gross weight(with bar /chain) : 11kg (24lb) Fuel tank : 825ml (27.9oz.) Packing size : 470*250*330mm Oil tank : 360ml (12.1oz.) Qty.:20'/40'/40'HQ : 720pcs/1440pcs/1750pcs