help to loosen wheel nuts

used to do the tractors with a socket and T bar, i jacked the tractor up but the socket and bar on so the end of the bar were touching the floor then lowered the weight of the tractor down that inturn turned the nuts , job done, or use a jack under the bar , either way its easier than fookin about all day , then again my first 1/2 " air gun were only bout £49.00 , this new snap-on were bout £250, cant tell the difference (performance wise), part from they last longer