Due to skip of reaming operation the hole got undersized.|During the reaming operation the operator taught that the part is finished to the requirement and unloaded the part.|Usually the hole on the part was semi finished to 7.9mm and undergoes a slotting operation and was supposed to be de-clamped and clamped to avoid ovality formation in the hole during which the operator miss-interpreted the hole visually as completed and removed the part.