... saving wrench for truck 2.Gear ratio:1:68 3.Max safe out torque:6200N.M 4.8 years' ... and machines.Directions of labor saving wrench HLH-68:1. Length:270mm2. Gear ratio:1:683.Max safe output torpque:6200N.M4.Carton ... *24.5cm5.One set including two sockets.The size of 1'',22'',24'',27'',30'',32'',33'',34'',35'',36'',38 ...