So I buy these to use as source/base material for making my own tools for Locksport / locksmithing, and I always just grabbed whichever was cheapest and had the sizes I liked and I just did not everything or believe that there was any real difference from one set of gauges to the next and they’re being cut up ground down and sanded anyway but there definitely is a big difference and this is the nicest set of feeler gauges of this type/style I have gotten so far.The metal is just better I don’t know any other way to put it and it actually has a finish on it it’s much nicer looking and while it was oiled, it was not drenched in greece/oil all the other sets I’ve gotten so far I’ve had to take out of the packaging and then individually blade by blade, wipe it clean with a paper towel and again I’m grinding and sanding things down into tools so oil is my friend LOL but even then too much LOL not the case with this set and again the finish they actually took the time to put a finish on these I’m very impressed and this will be the specific set of this style of feeler gauges I buy every time from here on out