I've got a Milwaukee that I have had for years.
Don't know the model number, and I know its not as strong as some air impacts, but it gets the job done, especially where air is not available.
Year or so ago, I caught this one on sale.
http://www.amazon.com/Milwaukee-907...47G9/ref=sr_1_1?ie=UTF8&qid=1322166912&sr=8-1
Its lots stronger than my old one and lighter.
Still not as strong as the one you posted though. But they may have stronger ones by now.
But, in case I have not already done so, I want to warn everyone DO NOT buy a 12 volt impact wrench!!
I got suckered into doing so several years ago. My father was getting worried about not being strong enough to change a tire if he got off somewhere.
So, I found him a 12 volt hydraulic jack, and ordered a 12 volt impact.
Fortunately, I tested it before I gave it to him. It looked good, so I plugged it in, put it on a lug nut, and pressed the trigger.
A small motor begin to run, and I could hear it getting faster and faster, but rather slowly.
After about 15 seconds, it was spinning pretty good, and suddenly I heard a loud whack, and the gun jumped slightly.
The motor had almost stopped, but now it started spinning up again. After a couple of minutes, it had delivered about 6 weak whacks to the nut which had not even started to move.
I took it apart. The small DC motor spun up a weight with a centrifical dog clutch attached.
When the weight got going fast enough, the arm swung out, and hit the backside of the anvil and slammed the weight to a stop while slamming the anvil in whatever direction you wanted it to go.
My best guess, it would take somewhere in the neighborhood of 30-45 minutes per lug for this thing to take them off.
Might be a little faster once it broke them loose, assuming that it ever did.
EDIT: Just realized I may have been unclear. The 12 volt one I am talking about is one that runs off the lighter socket in your vehicle, not a 12 volt rechargeable.
Don't know the model number, and I know its not as strong as some air impacts, but it gets the job done, especially where air is not available.
Year or so ago, I caught this one on sale.
http://www.amazon.com/Milwaukee-907...47G9/ref=sr_1_1?ie=UTF8&qid=1322166912&sr=8-1
Its lots stronger than my old one and lighter.
Still not as strong as the one you posted though. But they may have stronger ones by now.
But, in case I have not already done so, I want to warn everyone DO NOT buy a 12 volt impact wrench!!
I got suckered into doing so several years ago. My father was getting worried about not being strong enough to change a tire if he got off somewhere.
So, I found him a 12 volt hydraulic jack, and ordered a 12 volt impact.
Fortunately, I tested it before I gave it to him. It looked good, so I plugged it in, put it on a lug nut, and pressed the trigger.
A small motor begin to run, and I could hear it getting faster and faster, but rather slowly.
After about 15 seconds, it was spinning pretty good, and suddenly I heard a loud whack, and the gun jumped slightly.
The motor had almost stopped, but now it started spinning up again. After a couple of minutes, it had delivered about 6 weak whacks to the nut which had not even started to move.
I took it apart. The small DC motor spun up a weight with a centrifical dog clutch attached.
When the weight got going fast enough, the arm swung out, and hit the backside of the anvil and slammed the weight to a stop while slamming the anvil in whatever direction you wanted it to go.
My best guess, it would take somewhere in the neighborhood of 30-45 minutes per lug for this thing to take them off.
Might be a little faster once it broke them loose, assuming that it ever did.
EDIT: Just realized I may have been unclear. The 12 volt one I am talking about is one that runs off the lighter socket in your vehicle, not a 12 volt rechargeable.
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