Review on DEWALT D180002 Standard Electricians Bi Metal by David Monaco

What is wrong with this picture? I needed a 2 inch hole saw so I bought this handy set to have a small range of sizes. However, when open there are TWO sizes of 1-3/4 inches and a ZERO size of 2 inches. The kit was sealed in a box that appeared to be unopened (was sealed with tape). Maybe someone cleverly opened it, resealed it, and returned the correct size after removing it. One of the parts looks a bit used. Please check the quality!