Features and Benefits:�28” throatcan handle larger panels than the MH-19 can.�Stretches, shrinks, and planishes up to16 gaugemild steel.�Variable speed from0 to 1,000 beatsper minute.�Runs on120 psicompressed air.�Regulator on the side lets you control the airflow.�Air-powered system ismuch quieterthan a mechanical machine.�Foot pedal operationkeeps your hands free to move the material.�Quick-release handleon the front allows you lift the tool up and take the material out.Shrink and stretch with air! The compact,USA-madePH-28Ahits much harderthan traditional pneumatic power hammers. You can even use athumbnail shrinker die(included).