Objective: How can a piece of wood be shaped into a knife handle?

Which of the following solutions is more sound in terms of naive physics reasoning?

Options are:
(1). Mark the areas on the wood that you want to keep and use a wheel grinder to shave down the wood into a handle..
(2). Mark the areas on the wood that you want to keep and use a pepper grinder to shave down the wood into a handle..
(1).