A cordless, battery-powered nailer offers greater mobility than a pneumatic model since it doesn’t require an air compressor or a hose. This model also has a quick start-up time, but doesn’t have the power of a pneumatic nailer. A cordless, fuel-driven nailer uses combustion to drive nails.
Just so, how does a pneumatic nail gun work?
When you release the trigger, compressed air pushes the plunger back into place, blocking the air flow to the piston head. The air above the piston head is forced out of the gun, into the atmosphere. Pneumatic nail guns work very well, even at driving thick nails through hard material.