Snap-on is the only job for impact guns imo,a couple of lads have bought cheaper makes in work and they are crap..one in particular couldnt take wheel nuts of a car so then we tried the snap-on and it removed them no problem..he got a bit of slaggin over that!!the snap-on gun is about 600 quid though but probably the best tool ive bought to date,ive had it about 3 years now and hasnt let me down..