The wrench works well-just as advertised. Because of the battery compartment the handle is a bit bulky. It is still workable, and it works well in tight quarters where it is difficult to adjust a mechanical wrench.

I was surprised at some of the negative comments about this wrench. First of all, it seems to me to be as effective as the equivalent manually adjustable "crescent" wrench -- with the emphasis on adjustable. There are some rare times when an adjustable wrench won't do and an exactly size open end wrench from a set of wrenches may be necessary. In those cases, this wrench won't do the trick any more than a manually adjustable crescent wrench will.

But lets talk of the 97.98% of cases where an adjustable open-end wrench is just what is wanted and needed. Here's one that adds something useful -- it adjusts wider and narrower at the touch of a button. Well, a spring-loaded momentary-on rocker switch, actually. Convenient for your thumb -- doesn't matter whether you're right-handed or left-handed -- there's this rocker switch. Press one end of the switch and the wrench width opens up. Press the other end and it closes up. It doesn't take much practice to get the hang of it, and in an instant you can resize the wrench to fit your application.

My first use the other day involved replacing the fill-valve inside my toilet tank. Where I needed a wrench was to loosen the supply tube's hex nut -- you know the one, it holds the bottom end of the water supply tube to the shut-off valve that comes out of the wall below the tank. I also needed it to tighten the same nut when I installed the new tube. It did the job admirably. Yes, my old manually adjustable crescent wrench would have worked, but that takes a bit more effort to get the wrench jaws to the right diameter. With this battery-operated wrench, the adjustment was performed in an instant with the push of the rocker switch with my thumb, and without trial and error.

I'll be using this wrench a lot in the future, no doubt about it.

Yes, the grip is a bit bulkier because of the rubber coated battery compartment that forms the grip on the handle, and the handle is a bit wider than a manually adjustable wrench. But it was actually more comfortable for me, perhaps because I have fairly large hands. (I suspect that people with small hands might find a manually adjustable wrench with a slimmer handle better for them.)

Anyway, the other thing is, this is a fun wrench to use, too, a nice toy for people who do handy things. Well worth the $24 and change, I find.

Got one for Christmas, used it for one project, installing gas lines in the basement. Wrench fell off the ladder and that was it, no more auto wrench.

The good part, returned this to a B&D store, they sent me 3 wrenches as a replacment.

I'll be more careful with the replacements, but, this is not a regular tool, have to be careful with it.

I would not have bought this myself, nothing beats a good Craftsman open end wrench. I'll find a use for it.

Very nice. Steady in hand.
Only problem: Auto-adjust button does not really work if you hold the wrench vertically.

I do NOT recommend this product at any price as it has no gripping power at all and is a waste of money. The concept is great, but that is all..

I bought this as a gift for my Dad who has everything. He really wanted it and couldnt find it locally. Well he got it and wasnt that impressed. I dont know much about tools so.....

As other reviewers have noted, it does not tighten completely and even when you add the extra manual adjustment,it doesn't grip well. I disagree w/ the reviews that it is difficult regarding weight or "hand" feel. I think it is fine in both those areas as it needs some bulk in order not to break. Also it is a well made tool, just doesn't function as advertised or maybe I got a lemon! I had high hopes based on the + reviews, but am really disappointed.

I got this for a birthday present and use it all the time. Works great for any type of project.

I find that the product is difficult to use. Hard to remember/tell which button is for closing and which one for opening.

The manual adjustment, however, is a nice addition over similar products.

This is a great product. It is one of the best tools that I own.

I bought this wrench for my dad for Father's Day. He uses it for everything. And, it's so easy to use! I was even amazed at how well it works and tools don't impress me much at all. This tool is perfect for any handyman... or handywoman, for that matter. And, of course, I found it here when I couldn't find it anywhere else!

Best wrench I've ever owned. Lie is really easy when I'm under a sink or toilet.

I bought this for a male relative who is a mechanic and he said he likes it. He said it works pretty well.

I purchased this wrench for its "auto adjusting" feature, hoping it would make loosening/tightening nuts/bolts etc easier. While the jaws of the wrench are easily adjustable, they often fail to tighten securely. It is a good idea that just needs a bit of tweaking.

B&D 8 inch auto wrench, goes in and out all right, but mediocre quality at best, not for heavy projects. Jaws do not open wide enough for a kitchen drain, which I believe was one of the applications they suggested it for.

Maybe not the easiest and most useful tool, but as a gift for the guy who has everything, it's excellent.

I gave this to my dad as part of his Christmas gift and he loves it!
He uses it every chance he gets

I bought this as a gift for my father and now I wish I had bought one for myself. Very cool tool, you don't have to wear out your thumbprint winding it up and down. Durable as any Black and Decker item.

I got tis for myself, my dad, and brother. it works best in tight or quick work situations.

This seems to work ok most of the time. It hangs up occasionally. Mine has a little "play" in the gear that closes the wrench. Good idea, time will tell if it holds up to bigger jobs. My husband has his doubts, but is willing to give it a chance. Ok buy at $24 price range. Full price too much.

I was at first excited to get this tool, but disappointment quickly set in. It's not all these other reviews hype it up to be. It's big and bulky and the batteries drain slowly. Went to use it the other day, and it was dead, and I haven't used it all that much.

Can't find the right wrench or don't want to try to figure out what size to use? No problem. This is the tool for you. It really works great with just a push of a button. Now, I don't use it that often. Wrenches are needed for every project, but this tool does take the guess work out.

The automatic wrench was broken and not functioning appropriately upon delivery. To deal with delivered malfunctioning products, is a waste of money and most importantly time!!

I was very happy with how quickly my order shipped. I will be ordering from this seller again in the future!

Black & Decker AAW100 8-Inch Auto Wrench
I bought both of these wrenches for a Christmas gift and both people were very happy with them.

My husband and sons think this is one of the best products Black & Decker has ever made. It is so useful and easy to use, automatically adjusting itself. They think it is wonderful and were all happy "Santa" got them one.

The Black and Decker Wrench is a great tool, works great, the delivery by mail was very timely. Will definitely deal with Amazon again. Thank You.

My husband and son both love the auto wrench, no having to hold and turn to adjust just push the button. They need more tools like that.

I gave this wrench to my husband for Christmas since he is always looking for the "right size" wrench when he is working on something.

When we first opened it I thought it seemed very loose when it got smaller and I wondered if it would be able to hold onto a bolt. But later that day we assembled a crib and we needed a wrench. We tested out the new wrench and were pleasantly surprised at how well the wrench adjusted to the size and how well it gripped the bolt.

Wonderful idea. No more twisting to get the right size. Just a push of a button and it's there, one handed.

I bought this for my husband from Santa. He used it immediately and said it was great. He is pretty picky about tools. I would recommend to anyone.

I bought this for my son for Christmas. He was thrilled and used it right away. Thanks for such fast shipping.

I bought this tool for 2 trade handymen and they loved it. I was hoping that it wasn't too gimicky, and it wasn't percieved that way at all. They both felt that they could use this tool in many difficult applications.

I bought one for my step father and one for my husband and they both were so happy and said this is the tool that they need for a lot of their work, I would recommend this to anyone and especially women that has to do their own dirty jobs.

GOT THIS FOR XMAS AND LOVED IT! IT IS UNIQUE, AND LOVE DIFFERENT TOOLS LIKE THIS. IT WORKS GREAT.