775pro .5" Hex Output Shaft

[Sam Skoglund]

So I am trying to figure out the best way to integrate the 775pro into a custom gearbox. I see that the VEXpro ThunderHex has a 5.10mm hole through it, and the 775pro has a 5mm shaft. Would it be possible and or be a good idea to convert the 775pro output shaft to .5" hex by pushing it into the thunderhex and adding a small set screw?

I do not know a lot about tolerances, but maybe someone with some machinist knowledge can tell me what the 5mm shaft will fit like in the 5.10mm hole.

Thank you in advance!