Grindstone

A round sandstone wheel turning in a wet trough, with an iron crank. Hold a worn axe, knife or crowbar and click it to grind the edge back.

Blocks the way	yes
Takes	140 damage to break (stone): about 24 blows with an axe
Breaking it gives	2 fieldstones
Made from	4 fieldstones (5 s); a crowbar takes it apart again

What it does

• Click it holding a worn iron tool: 4 s of grinding gives +30 condition, up to 80% the first time and 10 points less every time after (iron is ground away for good), never above 30% once it's worn thin.