Oh, one more thing.... your outer diameter for your stock will be determined by your project's drawings. Meaning that if you have a lightsaber hilt drawn up with an outer diameter of 1.5" , you wouldn't start with a 4" diameter piece of stock. You would start instead with a piece of 1.5" diameter stock or slightly bigger if you wanted to have all of the surface machine marks be the same. And by slightly bigger I mean 1.625", NOT 2". But, if you find a smoking deal on 2" stock, and you have all year to whittle it down, and don't mind the wear on your tooling, then it's your choice.