how difficult is it to chop through some steel square tube (50x50x1.5mm)? I tried to call a fab shop rather than buying something to cut metal with but the guy was so profoundly retarded that it's looking more worth to just do it myself than deal with someone who spends all day inhaling fumes I've worked with an angle grinder but I think due to how accurate I need to be here I might have to get a chop saw or something thereabouts is it completely necessary to go and buy more power tools ? I hav…