Purge Bucket remix Rollers with metal rod

Purge Bucket remix Rollers with metal rod.  I had to use a drill bit letter size to clean out the wholes from both end of each roller. I think it was an O bit = 0.3160inch. Rod length is 138mm or 5.433 inches at 8mm Dia. Still I had to use a blunt force hammer to put the rods in so they are tight in the roller but spin in the bearing, and they do come out and let the edge of the plastic rollers grip the bearing better. Printed with the fuzzy setting in Bambu slicer, so reel edges grip the rollers better.