Warton metals autosol ra alloy no 1 fast flow 2 bit saving flux cored solder warton metals ra 2 18swg no1 warton metals autosol ra alloy no 1 fast flow 2 bit saving flux cored solder is a high purity solder containing a precise amount of copper which helps to extend the life of copper soldering iron bits warton metals autosol ra alloy no 1 fast flow 2 solder wire 18swg 122mm 500g