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I have no interest in the company. I bought a set of these hex bits and used the 14MM to Electric Impact wrench off my VERY tight Diff filler. The tool worked great with no apparent damage to it and none to my car. The 5MM I used to remove a very tight attachment screw on the door jamb latching thing. This screw was starting to strip from me trying to remove it with a regular hax wrench. I tapped the hex socket lightly and loosened it up easily with the new tool. Although made in some Asian country, the tools seem pretty good for the home mechanic.