Hendie
It would be great to transform that mesh in a solid!
AutoCAD will limit the mesh size to 256 in both of directions. Also how to sharpen a drill? If it is constructed from surfaces, you can modify something only changing the program (not really user friendly!).
A “solid” drill can be sharpened like in the real life, by placing a cylinder in the right position, copying it several times to reproduce the movement of the sharpener tool, and finally subtract all the cylinders from the drill.
My point: after the routine ends, the user must continue the work in AutoCAD. And if I may choose between surfaces and solids, I will choose the solids.