The full length bar has my attention, I've used the the two piece set ups to lay in the rings to check for alignment before lapping, but never a full length bar...interesting!!
Variables with the machining I have done is totally un actable . We have blue prints and all our products must met the standards in the blue print. Some of our machining have zero tolerance . LarryBigstick00 said:Yes "may have got drilled wrong!" It's possible that it could have been on an angle during the drilling process? Maybe not seated on one side in the vise? Hard to say! Lots of variables in the machining world!