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I have one of these in my workshop, and it is great. The power is tremendous, compared to the dock cordless (Where you have to put the entire screwdriver on the charger). It has not failed me yet, and is extremely sturdy, still working great after a few drops from table height. This impact eliminated the need for pre-drilling (Although pre-drilling is still a good precaution from splitting wood). It can last around an hour of nonstop use (Drilling in 3 inch screws all the time), even though the battery is quite old. The battery can be easily replaced, unlike those dock cordless screwdrivers. The method to remove the screw bit is interesting (Pull the release and take out the bit), instead of the standard magnetic one. This has lasted me around 3 years so far and is still working great- no maintenance required (No greasing or anything- I've had to grease my old cordless after a year because the bit would not turn).