The next time you need to extract an .mbtiles file into tile files, reach for tippecanoe. I’ve used it often for creating .mbtiles files but not for extracting tiles out of them.

It turns out you can the embedded command tile-join for this task:

$ tile-join --force --no-tile-compression --no-tile-size-limit --output-to-directory tiles 2017-07-03_north-america.mbtiles --minimum-zoom 6 --maximum-zoom 10

h/t yuiseki