OD finishing operation is carried by using fixture. Part clamped by butting the part face in fixture and clamped the part using washer on part ID.
If operator apply the more force to clamp the part,ovality is observed on OD.
Clamping force is varies person by person and also part to part due to manual tightening.

Due to above mentioned points parts are getting rejected.Clamping method are not streamlined and process is also not consistent.