Originally Posted By: BRZED
A small version of the beheading tool? What about pliers that don't pinch but shear off the wire?
They might do the job if you can find some with tool steel blades, I just have no experience with them personally.
I play in a band and run about 6 guitars, so I change strings regularly. I've yet to find a pair of cutters that will last when faced with the solid core of a set of strings, and they are way smaller than 2mm. I've probably destroyed 20 sets of cutters over the last 20 years trying to find some where the blades don't end up looking like a cheese grater. The worse they get, the rougher the cut and the bigger the puncture wound when I do something dumb.
Come to think of it, you might get a good clean cut with tin-snips. Same shearing action and actually designed to cut steel. I'd never actually thought about that before.