Autowrench® 8" Automatic Adjustable Wrench


  • One-touch size adjustment makes it quick easy to get a solid grip
  • Heat-treated hardened steel is tough enough for any job
          2.5 stars 14 Reviews Print This Page
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Product Details

Key Features

  • One-touch size adjustment up to 1-1/4"
  • Heat-treated hardened steel


  • Quick. solid grip
  • Tough enough for any job

What's Included

  • (2) AAA batteries


  • Shower head installation and removal
  • Hot/cold water line installation and removal
  • Furniture assembly
  • Bicycle assembly
  • Automotive repair
  • Motorcycle repair
  • Grill assembly
  • Toy assembly
  • Plumbing applications

Technical Specifications

  • Max Torque (ft-lbs)220 ft-lbs
  • Battery Life650 Cycles
  • TypePowered

2 Year Limited Warranty

Black & Decker (U.S.) Inc. warrants this product for two (2) years against any defects in material or workmanship. The defective product will be replaced or repaired at no charge in either of two ways.

The first, which will result in exchanges only, is to return the product to the retailer from whom it was purchased (provided that the store is a participating retailer). Returns should be made within the time period of the retailer?s policy for exchanges (usually 30 to 90 days after the sale). Proof of purchase may be required. Please check with the retailer for their specific return policy regarding returns that are beyond the time set for exchanges.

The second option is to take or send the product (prepaid) to a Black & Decker owned or authorized Service Center for repair or replacement at our option. Proof of purchase may be required. Black & Decker owned and authorized Service Centers are listed under "Tools-Electric" in the yellow pages of the phone directory.

This warranty does not apply to accessories. This warranty gives you specific legal rights and you may have other rights which vary from state to state or province to province. Should you have any questions, contact the manager of your nearest Black & Decker Service Center. This product is not intended for commercial use.

LATIN AMERICA: This warranty does not apply to products sold in Latin America. For products sold in Latin America, check country specific warranty information contained in the packaging, call the local company or see the website for warranty information.

    Instruction Manuals


    Ratings & Reviews

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    User Reviews for Autowrench® 8" Automatic Adjustable Wrench

    0 people recommended the following review
    John Hartshorn Wrote:
    I used it a lot before the belt broke. It has a 2 year warranty so if its after that time and the belt breaks go to WalMart or Target and buy a new wrench, remove the new belt and return the new wrench as a out of box failure - non functioning unit. I would buy the belt for $3-$5. Sadly, a 1000 of them would not take any space or cost much. I am a product manager and as such I would implement a courtesy replacement for the belt. Something that is virtually free will now cost them a return from WalMart. Just Save your receipt and box/packaging.

    Simple easy to use, relatively inexpensive, helpful in tight spaces


    No parts available - specifically the drive belt. Time to go to WalMart or Target and buy a new wrench, remove the new belt and return it as an out of box failure - non functioning unit

    3/5/2014 11:25:01 PM

    0 people recommended the following review
    blupe Wrote:
    It's junk
    Just got off of the phone with B&D Service. No parts available to repair the broken drive belt. tool is discontinued and nothing can be done. Another strike against cheap products being imported from China.



    belt broke after only a couple uses. tool is too bulky to be of much use. a waste of money.

    7/15/2013 4:38:10 PM

    0 people recommended the following review
    lario Wrote:
    Good Idea - One bad part
    Got this as a gift. Only use for quick, light duty. Neat idea.



    Used seldom, but always glad to have hanging on my shop wall for quick, light jobs. Only problem is the belt drive. Belts break (e.g. sanders, etc), but see no reason B&D can't list a replacement belt. Paying about $5 for a postpaid part would be acceptable, but about $25 to replace the whole tool just because of a broken belt is not acceptable!!!

    5/20/2013 4:55:07 PM

    0 people recommended the following review
    BillT75 Wrote:
    Cool Gadget Tool Gift... not for heavy use
    My wife gave this nifty wrench to me as a birthday or Christmas gift a few years ago. I've used it several times when I wanted a convenient way to torque down a leaking garden hose on an outdoor spigot or something like that. The batteries died in it a couples days ago, replaced them but the motor couldn't automatically close the jaws. It could only open them. I was disappointed, searched for advice from other owners & couldn't find anything positive about the wrench. At least my wrench's belt hadn't broken. I tried spraying the top & bottom of the thumb wheel pin on either side of the wrench with WD-40 and that lubricated it enough so the motor opens & closes the jaws just as fast when the wrench was brand new! I'm happy this wrench won't be tossed in the junk heap now.

    Automatically adjusts the wrench quickly when your other hand is holding something else in place. Hang tab is useful for hanging wrench from a peg board.


    Not meant for high torque or tight spaces. Instructions don't mention it requires lubrication. Motor belt is flimsy & should be offered as a service part.

    6/17/2012 4:12:32 PM

    0 people recommended the following review
    dstan Wrote:
    Isn't anybody paying attention at B & D. This wrench is JUNK.
    It was on sale at Home Depot for $3.00 (now I know why!). When I got home I started to try it out. When held so that the motor has to lift the movable jaw the motor stalled. I thought that customers playing with it in store the had run the AAA batteries down. So I replaced the batteries with with new AAA alkaline batteries and the results are the same. The motor does not have sufficient power to lift the movable jaw. Further in a tool box other tools a tool is likely to operate the switch which would run the jaw to one end or the other of its travel leaving the motor stalled until it ran the batteries flat, probably in much less than one hour. How can B&D management allow such junk to be sold under its name. If they had given this tool to even five of their DIY employees the would have quickly found its serious shortcomings. No decent mechanic would give this poorly engineered tool three minutes of his time. Don't buy one, if you have return it and get your money back.

    I thought it would be convenient to have it automatically tighten on a hidden nut or bolt. If it worked properly and wouldn't kill it batteries in a tool box that might justify its existence. Heck, if they had even given this tool to a eight year old boy with any experience with tools he would have quickly discovered its shortcomings.


    JUNK - weak motor. JUNK - in a tool box it will kill its batteries.

    1/27/2012 1:28:34 AM

    0 people recommended the following review
    dpkiefer Wrote:
    Novelty Item not for heavy use
    Bought the Auto Wrench for full Retail price $30.00 and used it maybe once in 3 years. When the batteries went dead, I replaced them only to find out that the Auto Wrench no longer worked. I could not pin point the problem but it was probably the small electric belt drive motor. Now out of warranty, it is not worth spending more money or time to fix it.

    Auto Adjust


    Big and Bulky, Weak Motor and drive system, Over Priced, Only 2 Year Warranty, Loose Tolerances

    3/27/2011 3:20:52 PM

    0 people recommended the following review
    Toddy Wrote:
    Great Product
    I was working under my kitchen sink in a very tight place and this wrench really came in handy.

    Ease of use.


    Can't think of anything.

    12/4/2010 3:55:09 PM

    0 people recommended the following review
    Mosquito Hawk Wrote:
    Poor Design
    I purchased the Automatic Adjustable Wrench app. a year ago. Used it one time. Tried to use it today but it would not auto-adjust. Removed cover and found the small flimsy belt that turns the cork screw was broken. What a piece of junk. Advise......Don't purchase.



    No durability

    11/17/2010 3:25:37 PM

    0 people recommended the following review
    Charley Wrote:
    Not what I hoped for
    Always looking at new tools to help with my projects. Have had it for a couple of years and have only used it a couple of times, just because it was in my tool bag.

    Interesting concept.


    No what I hope for. Not very convenient and poor battery life. Sorry.

    11/16/2010 6:05:29 PM

    0 people recommended the following review
    crom26 Wrote:
    I've had this in my tool box for a couple years or more. I've used it exactly once. Sure it's convenient to use one handed but it doesn't tighten hardly at all. You still have to fuss with the screw to tighten it sufficiently.

    The kids like to play with it.


    It's not nearly as useful as I had hoped.

    10/29/2010 1:56:15 PM

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