I'm realy astonished by the fact, that dev's added welding and smithing before bolts and clinches. My suggestions are:   Add BOLTS (we already have screws, but this is kinda different things) Add PLIERS - use to make things with bolts and wire.  Add DRILL(electro and manual) as a metalworking instrument to add bonus to woodworking too (having a drill inreases carp skill by 2 or something, will write another suggestion about it) Add RECIPES like:    keep DRILL, keep