Ahh, mechanical vrs. air. I bought my Murray 7 years ago, done nothing to it but a put a couple gallons of oil on it. I also have one of those "air hammers" OK hammer but there is no substitute for power (Grant help me out here). You want power in an air hammer you have to step up in price big time or go to the older Nazel, Chamberburg self contained hammer that often need work as well. My point is that you get more hammer for the money when you go Mech.