I used to buy tung oil and d-limonene by the barrel -- mix those together with a bit of carnauba and you have a great wood finish. Had very good success with floors, doors and trim using that.
Tung worked well for cutting boards, knife handles, and garden tools, but a few years back I switched to a pure wax finish for those: Mix jojoba ester (it's a liquid wax, not an oil) with heated beeswax to the desired consistency and it will deliver an amazing amount of water resistance. If possible I preheat the wood in a 170°F oven to dry it out and improve penetration -- a couple hours in direct sun on a hot day will prep the tool handles. I start with about 75% jojoba and work my way to about 90% beeswax layer by layer. An annual touchup with 90-100% beeswax keeps them beading water and looking beautiful.