All holes for the fuel fittings on the tanks needed to be enlarged to make the inserts fit and I made another 2 tools with tapered shafts and glued on sandpaper. Used the dril to sand the holes to the desired diameters of 3/4" and 7/8". I then made a small dool on the lathe to sand the inside surface of the tank where the O-rings of these inserts would seal on.
