How to reset Bounding Box without effecting the object? I got a problem with an upright object which with tilt bounding box.

Because its bounding box is tilt , I can't symmetric sculpt properly.

Although I can use mirror modify to get symmetric effect, still wondering is there a way to reset the bounding box without effecting the object inside? 



This is the object I made.



Its bounding box is tilt.
Your object has been scaled and rotated in object mode but the rotation has not been applied.

In object mode press &#9096; Ctrl+A to apply transformations.



read: Why is it important to apply transformation to an objects data?