Semi automatic screw insertion and removal machine. The machine
utilizes a high torque air motor with a push-to-start mechanism for
screw removal / installation. The air motor is driven down to a set
height using an air cylinder guided by two precision ground rods
sliding in bronze flange sleeve bearings. The air cylinder can apply
upwards of 100 lbs of force and is actuated by a foot pedal. The
machine accommodates a large variety of fasteners.