I bought them specifically for a 1/16" wrench on an old RC car. The set seems good (apart from the cracks in the plastic mount) and maybe the larger sizes will hold up. But I was about to restore my RC car when I noticed that the fitting of the 1/16" wrench was starting to loosen a bit. When I tried to remove the tighter screw, it completely rounded the key and rendered it unusable. These are screws that screw into plastic with very little torque, without corrosion. Unfortunately, the statement on their website that they have "high quality professional hex wrenches" that are "proudly made in the United States" says little. I would avoid them if you go often, use smaller sizes.
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