click-typefor torque-controlled bolt tightening in the cN·m and in·lb rangesfor one-off or production runsanticlockwise and clockwise tighteningwith 1/4" internal hex drive (F 6.3 DIN 3126/ISO1173)infinitely variable via micrometer scale (twist scale)disengaging clutch coupling prevents the preset value being exceededthe shape of the handle and its surf