I bought it for the purpose of tightening the bearing nut HLB-01 (M12) of the hard lock industry with a torque wrench, but the size of the nail part was a little wide and could not be used as it was.
I shaved off the width and height of the nail with a router and managed to use it.
I wish it was better if the depth of the socket was a little more, but it was good in the result. It was a bit hard but I was satisfied.
This product was not a bad translation, and the cause of the difficulty was that the design of the bearing holder part was an octopus. Lol