AIR PUNCH & FLANGE TOOL 1.6MM CAPACITYIN MILD STEEL WITH A 5MM PUNCH & CAN DOA 12MM FLANGE. 10 CFM OF AIR REQUIREDThe Air Punch and Flange Tool has a capacity of 1.6mm, featuring a punch with a length of 5mm and the ability to create flanges up to 12mm in mild steel. It requires 10 CFM of air for operation.