[Unclenick]

The cabinet maker who taught me basic finishing used 320 grit wet/dry as the first coat applicator, 400 grit for the second coat, and 600 grit to apply the third coat. This was with a polyurethane Danish oil finish, but it applies to Tung Oil, too. Since you have about a dozen coats to do, you can do more than one with each grit, stopping when you like what you see. The last coats could be brushed on.