I'm not seeing it, can you send a picture? My tailstock just takes a morse taper, so I don't understand how the fixture can plug into the tailstock. Mine is a 1906 Logan though. Anyway, you put the cylinder in the fixture and the fixture in the 4 jaw chuck, how do you center both end of the cylinder at the same time, with the dial indicator? Seems to me as soon as you get one end of the bore centered, the other one is off.
