This process is performed on every camshaft that we produce. The camshafts are checked for straightness to verify that they didn't bend during the grinding process. After they are straightened to less than 1/2 thousandths on the main bearing areas, each lobe is checked to ensure they are within tolerances for "run-out". If it not within tolerance, it is rejected and returned back to the grinder to be reworked. After every lobe is checked and has passed inspection, the mains are taped with protective wrap in preparation for the Parco surface treatment.