Air locker AP700 Professional Punch Nailer/Nail Remover (with Free Coupler Plug) Make sure to buy with the Free Industrial Coupler Plug! Punch / Remove or Sink nails between 10-20 gauge sizes Easy to use A good quality product The Coupler Plug is the Interstate Pneumatics CPH441 (1/4" x 1/4" MPT Industrial Coupler Plug)