Wouldn't want to try that, but I guess I could get someone more experienced to do it>I had problems getting a mitre fence to fit the sliding table on my casadei panel saw. In the end I machined the slot wider to take 19mm track fittings. I used a router and cleaner up with files but I was only taking about 2mm
i think that might be my best option.Is it possible to take a mitre gauge you like and replace the bar with a narrower one? Keep the old one if you ever want to switch back. I've accumulated several along the way and all would take a narrower bar and still have enough meat around the threads.