High powered, cordless tools, the battery pack impact wrench is a high-impact wrench. This device exerts terrific amounts of force without being plugged in through its rechargeable power pack. Among its many functions are loosening nuts and tightening bolts. Thanks to a very cleverly designed spring-loaded chuck that clutched nut may be pushed by hand to its limits without breaking off release as the PS20M Super-Duty Reversible Model requires. The impact wrench has technology built around it. High capacity Battery Pack, for long run time; brushless motor giving extended life; and electronic control system which enables accuracy and efficiency. Electric screwdriver is equipped with increasingly variable speed, letting users adapt an amount of power to the needs. The power of this tool can handle anything from bounce vibrators right up to structural steel erection work without renewing tool batteries hidden away in places humid or acidic air might penetrate them more easily than air in a building car. Among the things you can do with an impact wrench are: hardware stores, building construction sites in a new area of housing so the impact wrench becomes indispensable for tightening up for driving stability and function; gasoline service station garages and outdoor equipment where it's always necessary to take things apart to get them back together again. But not in the emergency room, please!