I used it with a ratchet handle via a bit adapter.
Ultra low head hexagon socket head bolt has a shallow hook of a hexagonal wrench, so it seemed easy to lick, so I tried using this product,
I could relax, tighten the bolt without damaging the hexagonal hole in my head.
I was able to work with quite a sense of security.
I'm glad I bought it. I think so deeply.
Since there is no play of the hexagonal part and it is perfectly fit, it is possible to prevent damage to the bolt. Also I love the installation on the impact wrench and the lock situation are very good and I like it very much.