Use: Controlled screw tightening in the range of 0.5 - 4.5 N · m, Serial manufacture with constant tightening value, Electronic industry, precision mechanics and industrial manufacturing, Features: Pre-set torque screwdriver - without scale, With 1/4" female hexagon drive for use with 1/4" hexagon bits as per DIN 3126 - C 6.3, Classified according to DI