A Machine Operator operates fabricating machines, such as cutoff saws, shears, rolls, brakes, presses, forming machines, spinning machines, that cut, shape, and bend metal plates, sheets, tubes, and structures; Reads specifications to determine machine adjustments and material requirements; Positions stops or guides to specified length as indicated by scale, rule, or template; Places work piece against stops, or aligns layout marks with die or blade; Pushes button or depresses pedal to activate machine.