Wiha SoftFinish TorqueVario screwdrivers have variable torque settings that can be adjusted in increments using an adjustment tool. The torque display scale shows the exact torque setting. When turning the driver will emit and audible click once the torque setting has been attained and automatically resets for the next torque cycle. The TorqueVario handles are designed to work with Wiha Torque Control Blades. There are bit and socket adapters that allow for using the torque driver in a variety of applications.