Smooth shading not smoothing everything as expected I have a mesh that is not behaving the way I expect when it comes to smooth shading. For example, here is the mesh (it is all one piece) shaded smooth (as compared to a Blender Cylinder to highlight the differences):



And here it is shaded flat (again, as compared to the cylinder)



I expect the handle area to be smooth just like the cylinder (you can notice the purple structures smoothing some edges, but not all). 

I already:


Made sure there is no edge split modifier on the mesh
Selected all edges and did a Clear Sharp operation
Selected all vertices and removed doubles in case there are un-merged vertices


Here's the file for reference:
Just disable "Autosmooth" option.