Stay Hole Drilling

To properly drill the holes for the stays that will run the full length of the tank, a centering pin needed to be made to line up the two end plates as concentric as possible and then clamp the entire assembly down to the mill/drill table. The pin was made on the lathe to accept the already center hole used during the O.D. turning operation. The series of steps below thoroughly illustrates the entire process done to finish drilling these necessary holes.