“Lang Li” labor saving wrench adopts the highly effective and variable speed as a main drive, which is its characteristic small volume, light weight, and the small input variable strength can produce very big output torque . 40Cr, economical, efficient, appearance using polishing coating has a good feeling. Widely used for disassembling of various types of heavy-duty truck tyres, is the necessary tools and the car repairman driver friend handy ideal accessory tools. Product Service object: Trucks, heavy-duty trucks, various types of military vehicles, container trucks, tankers, buses, mine car, dump truck, tractor. Also applies to factories and enterprises, and other special vehicles and large equipment. Technical parameter(58S): 1.Gear Ratio 1:60 2.Max safe output torque is 3200N.M(equal to 327KGF.M) 3.Max output torque for normal dissembling(tightening) is 1200N.M(equal to 40Kgf applied to 3-meter-long bar) and the pull force of rocking bar is 18Kgf 4.It takes about five minutes to disassemble(tighten) a tyre. 5.The net of the tool is 4.5Kg and the total weight is5.5 Kg. Torque Amplifier Points: 1. put the socket onto the square head of the handle and the rocker on the other end 2. when the socket is put the nut to be disassembled or fastened,pay attention to the direction of lossening or tightening .Roll the rocker so that the handle is against the side of another bolt tightly. 3. After the nut is unscrewed ,use the long bar to remove quickly.