Hacksawing sheet metal

I’m sure you’ve all heard that horrible noise you get when you put a sheet of metal upright in a vice and try to saw through it. The noise is cause by the sheet vibrating as it’s cut. As well
I’m sure you’ve all heard that horrible noise you get when you put a sheet of metal upright in a vice and try to saw through it. The noise is cause by the sheet vibrating as it’s cut. As well