Primary use: destroying trellis plants near instant, one tick action. secondary use: use on ground to mix in bark (x6) into the soil to convert current dirt/grass terrain tile into forest (wald) type. 1x hard metal + 1x wood block. could use bone glue too.
It's a good idea, and a simple solution to the trellis problem. It might be worth adding some more functionality to it. I know that this tool is often used in the garden, but I rarely turn the land into a forest or harvest a vine. Something that would suit many people.