... compressors, large torque: 340N.W, it easy removes and installs the boltsc. 12-volt DC power , it ... can work when insert it to cigarette lighter. And it can start the car self-owned jacksd. ... It can be clockwise, counterclockwise turned, can tight and loose the bolts.e. European high specification “CE-EMC ... four sizes six point sockets: 17mm, 19mm, 21mm, and 23mm.h. Operation simple, no time to study.i ...