Using a file on a set of points will be good enough to get a farmers tractor from the field to the barn, but it is awful hard on the points. The points work best if they are close to a mirror finish. Slightly oxidized points can be burnished with a business card until shiny. If they require anything more than that, you should get new points.

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission