A professional who tends power screwdriver that tightens bolts, nuts, or drives screws to assemble products fabricated from materials, such as wood, metal, plastic, or other materials. Responsibilities include:

• Threads or clamps specified torque chuck onto machine spindle.
• Inserts shank of specified wrench or screwdriver bit into chuck and tightens it, using chuck wrench.
• Inserts screw or bolt through holes of workpieces or nut onto stud, and turns screw or bolt to catch thread.
• Positions bolt or nut under bit, and depresses lever to lower spindle and grip head of screw or nut.
• Pushes pedal to activate spindle that turns and tightens nut, bolt, or screw to torque limit of chuck.
• May tend machine that positions screw or bolt into workpiece.
• May tend machine that is activated by pressing workpiece against chuck.
• May fill hoppers with screws and tend machine that automatically feeds screw between aligned holes of workpiece.