Seen a demo of this at a trade show, tired it and once you get use to it the time saved is impressive. Typical that i paid a little more than this price though.
https://www.transtools.co.uk/store/...tters/quickcut-plasterboard-slide-cutter.html
https://www.transtools.co.uk/store/...tters/quickcut-plasterboard-slide-cutter.html