Direct plug-in(AC220V)type,high accuracy,large torque range.Inside double insulation,automatically reset fuse and indicator light conform ISO standard.Design ergonomics handle and anti-slip ensures operator  comfort.Transmission is the part which obtained national level patent and has longer life cycle.Ensure accuracy in fastening with precision designed automatic screw can be quickly and well luck one time.All these features are what we want to provide to our customers.