Review on Versatile Spanner Nut Wrench Tool: Ideal for Floor Heating Pipes and Cars Walnut, Features Non-Slip Handle by Michael Wehrman

It doesn't have the quality or versatility of a high end wrench but I wasn't expecting it. For a fraction of the cost, it did its job perfectly. I used it to remove the castle nut on my AR15 rifle. It hasn't slipped or come loose as many have complained. If you put it on properly, engaging all 3 prongs and holding it with one hand, you can grab the handle with the other. Of course, this is best done with a vise. I find this little wrench better than all other inexpensive wrenches because many don't have 3 teeth, only 1 or 2. I only bought this for one purpose, my AR castle nut. This worked great for my purpose. Maybe I should have given it 5 stars because it's not fair to compare it to high end keys.