I took my covers to a local machine shop to have them run down on their emery belt sander. - took him 30 secs. ea, - no charge
. *
Also, in my old age, I don't trust my sense of gorilla feel anymore, so I bought a high quality 1/4" torque wrench. It does not have a ratchet feature, but you won't miss it with the smallish nuts.
Bill K
*(Not to worry, I still slipped him enough for a case of Corona)