Yes, it does not work with wet wood. You rarely want to cut wet wood though. As for wood with nails, you NEVER cut wood with nails in a workshop. Nails + metal

Yes, it does not work with wet wood. You rarely want to cut wet wood though. As for wood with nails, you NEVER cut wood with nails in a workshop. Nails + metal blades = sparks, and woodshops, even with ventilation and vacuums,have wood dust everywhere on the floor, the air, etc. It'd be the surest way to start a fire.