Jr Gent 1 call for 12mm on some of the older instruction sheets. Newer instructions call out a fractional that you have on your design.I can do that.
Are there any kits out there that still need a 12mm bit? I omitted that size because I either didn't see any current kits or just overlooked it in the bushing reference files.
Le Roi Elegant Royale use a "U" bit but they might be the only kit that does
For Reference 9.5mm is almost identical to 3/8th and can probably be used most places where 3/8 is called for and visa-versa.
This seems like a pretty good idea Carl.