This cordless screwdriver is a compact "power" screwdrivers! After a number of major 12 and 18 V devices I wanted something more manageable and easier, which is enough "big" approach to the performance of. Here the DF030D is just right, he screwed even 6x80 mm Spax screws flush a, 'more than the producer does! 10 mm in wood and 8 mm in aluminum and iron (with hex shank drill bits). What you should know that not snap all normal "short" bits, this does not affect the performance. Practically, the afterglow of the built-in LED. This screwdriver and the two batteries I have about 20 square meters Terrasendielen laid with 4,5x60 mm screws. The only interruptions were that change the batteries! The charging time is really fast, I did not get it geschaft to a battery empty before the 2nd was loaded. And this time I did not have a thick wrist on the weight of the screwdriver.