In the case of our in house designed Rocker Arm Stud Tool each and every hole is exact. Our tool allows us to take critical measurements from the existing Rocker Arm Studs and ensure that the location of the Tap is in exact perfection to original location. Not only is the tap located in the correct center to center distance to the next rocker arm stud it is also located to ensure that the studs will be parallel and at the correct Valve Stud Inclination Angle.
