1300W 2-stroke pile driver features 7000 r/min speed and max. torque 3.5 N.m for providing powerful impact force 2-Stroke gas powered motor is used 2-stroke mixing oil (mix ratio: 25/30:1) to the fuel tank Press the throttle handle to adjust the impact; internal vibration damper for absorbing shock Large cooling vents for heat dissipation Necessary tools like socket sleeves and spark plug for piler driver; socket sleeves of 2 3/16' and 2 3/4' inner diameter fit for 1 15/16' and 2 9/16' piling heads