What was your AF point in this image (if you used AF)?
It was the face of the plier part. I used AI Focus, and I didnt use the Live 10x for everyshot I took but I did try a few times to do that. Hard to recompose when I did that tho.
Your recompose comment made me wonder. If you focus and recompose, there will be AF error. The error depends on several factors, and is most noticeable at a wide aperture, while the error gets lost in depth of field at small apertures.
If you used recompose on the original image, that is likely your problem. Using liveview, at least on my 5D MK II and III, you can move the focus box to the feature that you want to be in focus, so if its off center, no problem with liveview.
The 5D MK II is not great with phase detect and off center focus points, but the MK III is fine.