Use to correct the alignment of bottom and top holes for the fuel rod on 1940-1952 WL & WLA 45CI Sidevalves, 1940-1948 U, UH, UL & ULH Flathead Big Twin, 1940-1947 E & EL Knucklehead Big Twin, 1940-1965 F, FL & FLH Panhead Big Twin.
Use to correct the alignment of bottom and top holes for the fuel rod on 1940-1952 WL & WLA 45CI Sidevalves, 1940-1948 U, UH, UL & ULH Flathead Big Twin, 1940-1947 E & EL Knucklehead Big Twin, 1940-1965 F, FL & FLH Panhead Big Twin.