To vastly slow down and prevent pneumatic tools deterioration the KEY is daily tool oiling. Compressing the air you send to power your pneumatic tools literally changes the "dew point" and causes it to RAIN (no kidding) inside your equipment. Whatever moisture is present when the compressor squeezes i...t to higher pressures can lead to premature wear and tear, and rust. But...place a couple drops of the OMER HIGH QUALITY pneumatic tool OIL into the tool's air inlet (male plug) and you are giving a fighting chance to stapler & nailer's inner metal components. Sometimes you want the 17 fluid ounce bottle with a great little cap to make sure you never run out and to reduce the costs. Of course the bigger 170 fluid ounce REFILL JUG, let's you reuse this air tool oil bottle 10 Times. At a couple drops a day...that goes A Long Way toward ideal lubrication. Avoid costly down time and money. Get in the habit of daily oiling your air tools!