
This works as I hoped it would. I've had a few slip and work well on screws or other items that a regular socket wrench might work with, but none of them have ever been able to grab stripped screws, which as promised are difficult to hold. This head holds up well and has worked with several head screw heads that I have previously had issues with. can hold! The pens return well after use. Just note that a) they can only hold objects up to 2.5cm in diameter. So if you are looking to loosen a wing nut or eye hook as shown on the listing page make sure it is less than 1" wide and b) you should always try to loosen the bolt/nut/whatever above the to center the socket. It works if you don't center it (at least in most cases), but it works much better if you center it.

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