Final answer:
The name of the handheld woodworking tool used for producing a level surface on a piece of lumber is a handheld planer.
Step-by-step explanation:
The correct answer is Handheld Planer. A handheld planer is a woodworking tool used to produce a level surface on a piece of lumber. It is a portable tool that can be operated by hand. It typically has a flat sole and a cutting blade that shaves off the surface of the wood to create a smooth and even finish.