This unit was bought to replace a burned-out B&D CD12C, I have been using it for a year now, I have no complaints, two miniature (compared to other Screwdrivers) batteries will give a good head start in terms of the last one, at a voltage of 10 volts, it has a serious moment (repeatedly turned the screw caps ), has two speeds, and the "drill" mode. It can be said that it has become my "desktop" instrument. I have absolutely no regrets about the money spent.