J roller used when laminations are placed on the substriaght to roll out any air by working from the center out.
I know I did not have it sitting to make it look like a "J" but that is what it is as answered by delroy33. I'm guessing you did not need my little fhij......hint now did you....delroy33 said:J roller used when laminations are placed on the substriaght to roll out any air by working from the center out.