I found this bit of helpful information in a magazine, and just wanted to share.
Dip a rag in a container of boiled Linseed Oil, and wipe it onto a sanded tool handle (shovel handle was shown).
Let the oil soak in for a few minutes. The wipe it off the excess with a dry rag.
I haven’t tried this, but I’m thinking it might work on cutting boards, and butcher blocks as well.
-- If you work you eat - If you don't work, you eat, drink, and sleep.