It uses AAA batteries and is slim enough to work in cramped conditions. But don’t fret if you run out of juice, as you can turn the knurled adjuster manually, too. The tool extends to a useful 30mm opening, but we found there was a little too much play in the jaw to hold on to a nut or bolt securely.
The Auto Wrench is tough, though. We dropped it several times from waist height on to a garage floor and found no damage, while the electrics remained intact. The only real drawback is the price, as it’s on the high side. Other than that, this is a decent piece of kit.
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