The Senco EA0168 Nailer Piston/Driver Assembly is the main part that is charged with the responsibility of driving nails in Senco nail guns that are compatible with this piston. When the nailer is triggered, compressed air pushes the piston, and consequently, the driver blade is connected to it. This blade hits the nail with better force to drive it into the workpiece. It has advantag... https://www.wholetoolbox.com/senco-ea0168-nailer-piston-driver-assembly