Introducing the IronBrush™ - a revolutionary pneumatic engraving tool with the power to cut steel and agility for stone setting in gold and other non-ferrous materials. Equipped with a powerful tungsten piston, the IronBrush™ does the heavy lifting while you guide the engraver to where you want to go. A solid aluminum foot pedal is equipped with a dual pneumatic piston for easy control off the airflow to the engraving tool. Manufactured in Europe for Pepetools, the IronBrush™ sets the bar on engraving tools.
Instructions can be found here