If you still have glue inside the hole, try cleaning with a little acetone. Be very careful as that stuff will remove varnish (clearcoat) or paint. If you don't want to go that route, use a drill with a bit that is slightly smaller than the hole. Just clean the edges. Try the Tube (Nylon or Teflon) first. Fittex grommets are good when you have to replace a tie off hole. You need a grommet grinder or bit to drill out the old grommet tube if using Fittex. Longer tubes are better than shorter tubes as you can always shorten by cutting.