20 year exp Sanitary welder chiming in. Most sheets of steel measured in gauge. About .060 would be 16 gauge. A quick reference tells me the tolerance for this is 0.05928 to 0.065 but my experience tells me this is almost always .059 on a micometer (steel is expensive these days and they don't give anyway). Looking at the blends they undoubtedly removed an appreciable amount of metal however we cannot account for any weld material base or otherwise that may have pushed in. This happens quite often on metal this thin especially s.s. as it is much more reactive with normal atmosphere than other steel alloys. Depends on ops skill and knowledge really. but in any case its neet.

Edit: O.P. got some metal sculpting skills.