Use to check the alignment of cam bearing to cam cover bushing to within .0003" of centerlineBinding of tool indicates misalignment of cam cover and bushingMade in the U.S.A.
Immobilizes primary driveAllows for tightening with a torque wrench or loosening with a breaker barPrevents damage to rotor or magnets sometimes caused by air-wrenchMade in the U.S.A.