Objective: Making a Tanto Knife From Lawn Mower Blade.

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

Possible answers: (I) Gather your materials including a backho blade and cut the design using sand grinder, using a bar of aluminium bolster the handle, using wood or ivory make the grip, paint.. (II) Gather your materials including a lawn mower blade and cut the design using angle grinder, using a bar of aluminium bolster the handle, using wood or ivory make the grip, paint..
(II)