Air Coil Nailers CN55CN70CN80Pneumatic Coil Nailers Style number: CN55 CN70 CN80 CN90 Air pressure: 5-7kgf/cm2(0.47-0.68Mpa) Air consumption: 1.5kg at 6.5kgf/cm2Nail length, production dimension listed as belowPAY GREAT ATTENTION FOR BELOW POINTS1. AIR PRESSURE CAN NOT BE OVER 8.4kgf/cm2(0.82Mpa) 2. DO NOT PUT HARD MATERIALS LIKE STEEL PLATE UNDER YOUR WORK PIECE TO WORK ON IT. 3. USE LUBRATION EACH TIME AFTER USE IT.WE HAVE ALL SPARE PARTS FOR THE NAILERS WE SELL IN OUR STOREIf you have any question, or any need, please feel free to contact us.