I highly recommend this for the toolbox. Someone on here recommended it when I asked about a brake flaring tool and they were spot on. It will flare steel pipes with ease.
https://www.ebay.co.uk/itm/Brake-Pi...053600?hash=item3f850b5b20:g:cIMAAOSw5HJXK4f~
https://www.ebay.co.uk/itm/Brake-Pi...053600?hash=item3f850b5b20:g:cIMAAOSw5HJXK4f~