handlewanker
The paint on the mill is a 2 part epoxy I sprayed it on, it is not powdercoat, That mill has worked hard everyday for 10 years now, & still looks like that, It has a 30 taper
As for the Needle Roller Bearings most have a Hardened sleeve that you can get for them
they are very cool
I built a grinder to grind the taper in the spindles