if tools are not the problem listen get a torch not to cut of the bolt but to loosen it up a bit you torch the bolt up till it starts to glow a little orange them you either grab 1(an old ratchet with the correct socket and you bang the top of the ratchet while jerking it trying to loosen it.) 2(or you just put an impact gun to it till compressor runs out of air) if the compressor cannot hold the gun for longer than 2min. at full blow then you need a bigger compressor. the reason for the torch is so that the heat can stretch the bolt out a bit.