haha yah ive used air tools at my friends and work. i dont really plan on it much, but if i used it for tightening ill only use it to get it close to tight then ill hand tighten it. the one think i hate about stuff like that is i cant really tell how tight it is. like right now, im needing it to put my rear disc brakes, and front camber kit on. and to get my damn wheels off cause last time i got tires i think they use a impact to put them on. or ive just got incredebly weak since the and cant get them off by hand with a 4way