Straight with 5.5mm punch 13/64” capacity. Blade designed for easy replacement. Ball bearing construction with a forward exhaust system. Dual Function tool: performs hole punching and panel crimping. Features a rotating head for convenient use. Every pull of the lever delivers a single punch or a single flange crimp with precision control. Forms an offset crimped edge on sheet metals for no-bump lap welds. Air inlet thread - 1/4” npt; air hose size - 3/8”; air pressure - 90-120 psi.