In OD roughing setup running time insert will be chipped out and part will came in plus side and that part not checking the operator and for next part he found out part will become over sized and he change the insert and maintain the outer dia in required size. but previous part not maintain in proper diameter. So in the finishing setup that part loading time finishing tool get the more stock and chips will be rubbed in the outer diameter and part will be -0.1mm under sized. So part will become rejected.  
