Track adjustment device for hobby screwdriver

meanwhile there are for about 100 Euro devices to set the track myself my question has already made someone’s own experiences yes partly wild prices at the track setting a colleague have taken them times 150 Euro but a workshop without an axe measuring device has also mediated this and even at normal prices the money is twice against inside application video https://www.youtube.com/watch?v=TKQrMiyfSCw&t=62s https://www.ebay.de/itm/331688440438 and where do I get as a borrow the settings data of my track ?? what do you think of the part ?? I am a bit divided whether to be set or to be set yourself but you can check the track yourself with the part that would be the 100 Euro