Those who are not familiar with watchmaking and the tools involved might get all sorts of ideas when someone mentions a vibrating tool. What does it vibrate and why? Well, it doesn't really vibrate anything in the sense you might think. It does not shake and rattle and roll. Hairspring vibrating is something that not many watchmakers today have to do anymore. It is basically forming a functional hairspring for a timepiece from a blank. You get a very high precision coil of flat wire thinner than a human hair and made of exotic materials and you as the watchmaker must cut it to length and form it into a functional hairspring. Sounds simple, right? Well, it isn't. It is in fact one of the most difficult things a watchmaker must be able to do to a very high level of precision. A poorly formed hairspring will result in a poorly running watch.
This tool is called a hairspring vibrating tool and the idea is that you have a reference platform which will oscillate at a certain frequency and it is your job to make your balance wheel and hairspring combination oscillate at the same frequency. These platforms come in different oscillating frequencies, usually 18000, 21600 and 28800 beats per hour which are the most common frequencies for watches today.
I bought one of these platforms from a second hand tool shop in Switzerland but it was broken. one of the pivots of the balance staff had snapped. So, long story short, I made a new one.