The 2200 Series are lead screw tappers that are engineered for accurate hole tapping in medium to high-production machining operations. They are air-run and completely automatic and have built-in, pressure-operated valves, manual regulators and remote regulator plugs for starting and retracting. They can be easily installed since a basic pneumatic circuitry is preferred. These screw tappers can be used individually or in unison with other pneumatic and electronic self-feed machining equipments.