We've found that these new CF tools can shoot over 100,000 times before needing service or a cleaning. How ya treat the tool can make the difference but this performance is outrageous and seals one heck of an argument for framers to go Cordless. Almost 30 years since the first advertisements suggesting exactly that, we now really do have a Cordless nailer that is a better choice than an air tool. -Ben at Sunrise Fastener in Louisville, KY.