Manually operated Portable key fabrication and copying jigs have been around in the automobile dealer world since the 1970s. How do I know? Because the miracle of Netflix brought me the episode of Columbo where such a device was shown in use.
Why do El Reg geeks always run for the most expensive and complicated solutions when it comes to bending metal in the real world?
Dremels. 3D printers. Casting paraphernalia.