Battery Impact Wrench
When battery impact wrenches first became available in the market, these seemingly novelty items were more apt as gifts to suburban husbands by suburban wives. It was just another new gadget in the tool box. It is true that air impact wrenches can deliver more torque and are less expensive that the battery-operated impact wrench. However, a battery impact wrench is more portable as there is no need for hose lines and air compressors to operate one. A battery impact wrench is highly convenient especially when the job at hand is a short and sweet like changing a tire or changing the blades of a lawn mower.
Battery packs of 14.4 and 18 volts are powerful enough to loosen a couple of rusted bolts. Today, more mechanics and self-proclaimed enthusiasts have a battery impact wrench in their tool boxes.
There is nothing to beat the power that an air or pneumatic impact wrench can give. But, if the you are a farmer, out in the field and an equipment suddenly needs tightening up, the portability and convenience of a battery impact wrench is tops.
Battery impact wrenches are available in 9.6, 12, 14.4 and 18 volt units. An 18 volt battery impact wrench packs about 240 to 325 foot-pounds of torque, weighs from 7 to 18 pounds with a price range of $300 to $545. A typical 18 volt battery pack will give you an hour or so of usage.
In the long run, a battery impact wrench is not practical to use if your usage takes hours. It would certainly be an added cost for you to buy extra battery packs to sustain long hours of use.
Bosch 24618-01 1/2-Inch 18-Volt Li 2-Fat Battery Impact Wrench
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