SpecificationsEngine: Single Cylinder, 2-stroke, air-cooled.Cylinder Capacity : 52cc.Fuel mix: 25/1.Drill Bits : 4", 6" and 8".Bit length: 31".Safety: Bit Lock.Power: 1.9W/7500rpmCarburetor with pump.Easy starting system (cord starter). Centrifugal clutch.Change bits quickly and easily.Weight : 10.35 Kg/22.8Ib. (without bit).Rotational Speed：8500RPMHorsepower: 2.4 psNotePlease keep the choke to on position when the machine is in use!When using the hand puller, it needs to be buffered. Do not pull it all at once, just pull it to two thirds. Be sure to mix gasoline and two-stroke engine oil before adding it. The ratio is gasoline: two-stroke engine oil = 25:1Start stepsPlease remember to close the air door and then pull the starter (don’t forget this step, otherwise you will not be able to ignite when you deadlift)Pull the rope starter 3-5 times, the total length of the rope is 70cm, and the safety distance is 30-50cm. If the safety distance is exceeded, the rope will be broken, not the longer the rope is, the betterAfter the start is successful, remember to open the damper (not to pull the starter when opening the damper. When the damper is opened, too much air enters and there is too little oxygen, it is difficult to start, so pull the starter when the damper is closed.After the machine starts successfully, open the damper.Pulling the starter to the end of 70cm will break the rope; the safety distance is 30-50cm, and pulling the rope hard will cause the rope to break. After breaking, you need to buy the starter again.Accessories3Drill Bits: 4", 6" and 8".Extension Bar: 12".Fuel Mixing Bottle.Toolkit for assembly.