Features and Benefits: *Blade designed for easy replacement *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 *Lightweight, yet ruggedly built *Cuts metal fabrication time in half *Punch capacity: 5/16" *Piston stroke: 5/32" *Overall length: 10" *Net weight: 3lbs. *Air inlet thread NPT: 1/4" *Air hose I.D. Size: 3/8" *Avg. air consumption: 4cfm *Air pressure: 90-120psi