I just for the first time installed a collet closer that came with the Takisawa, but it didn’t work. Thinking it was broken, I took it all apart looking for problems. I wish I had read MrWhoopee’s post above, but finally after adjusting the linkage and collet threading about a million times, I found the right combination. It is very impressive how easy it is to work with small rods, just popping them in and out. I measured an average 6 tenths of runout. I like!