I bought in addition to a cordless screwdriver to screw long (more than 90 mm) self-tapping screws into wooden beams. The screwdriver is impact, so at first you need to adapt. But then you enjoy your work. I screwed the boards of the draft ceiling, when working with my hands up in the air, compared to a cordless screwdriver, my hands get tired much less due to the low weight and the need to make less effort to twist. I recommend to buy, the tool is pleasant to work with.