AIR LOCKER AP700 Heavy Duty Professional Punch Nailer / Nail Remover with Free Steel Coupler Plug 1/4 Inch x 1/4 Inch Male NPT Air Inlet: 1/4 inch NPT Thread Operating Pressure: 80-120 PSI Driver Diameter: .160" Includes: Punch Nailer / Nail Remover, Steel Coupler Plug - CPH441, Operating Manual, Cardboard box