While there are all sorts of ways to build a hot wire foam cutter, this design from [jasonwinfieldnz] is both interesting and imitable. If you don’t already know it, nichrome wire is nifty stuff ...
Plenty of hot-wire foam cutters have graced our pages before, everything from tiny hand-held cutters to a hot-wire “table saw” for foam. We like the effort put into this one, though ...
Xuron Corp. has introduced a hard wire cutter that is designed with by-pass cutting which leaves flat ends rather than compression-type cutting which squeezes and deforms the wire.
Better to cut the bolts precisely to length using the right tool. Your multi-purpose wire strippers are the right choice because they're already in your hand when you're doing electrical work ...