Based on the answers provided, the following corrections need to be made to the 3D object:

1. Modify the ends of the object to resemble a box end wrench. This means that instead of simple circular ends with holes, the ends should have a closed loop or socket-like structure characteristic of a box end wrench.

2. Ensure that one of the circles at the ends of the wrench is slightly larger than the other. This detail is currently unclear in the images provided, so adjustments should be made to make this feature more apparent.