I have a 945-1 and the grips are getting a bit loose. The grip screws seem to be a really small hex head but even my smallest hex key is too large. S&W couldn't help so does anyone know the hex size or maybe there is a special tool for this?
The hex hole is so small that I needed a loupe to see it.
I really like Ballistol and it is my go-to cleaner/lube for all firearms. I have a stock of Mpro-7 cleaner which is good but probably won't replace once I use up.