For "rough" work in walls or wood the drill can be used and drill (like any cheap drills from 1 - Shop presumably) (! Attention surprise) according to the vision holes in the present material. But who has the hope, with a 6mm drill bit (both for wall and wood-beamed or boards) to also get an appropriate diameter for the drilling operation ... none. At the end there are between 7 - 9 mm ... the reason can be applied at least half of all drills in this set regrettably on. The drills have almost ALL imbalance, some such a large that one. A 8-hole drilling in wood with a 5 or 6 pre-drill, in order to build up gradually
As I have tested the set of a hardware store before and there is also "failed" so many drills (I bought this set for control and only remember because I have set out for some work; now I have disposed of it to me further frustration to spare) can only say: rather buy 5 drills of 10 Euro and frustlos drill (corresponding Shops are enough on the web) and thus achieve desired bore diameter or with this inexpensive set of the brand Bosch money unnecessarily spend and then only buy new.
Incidentally: Also stay away from the green Bosch series of cordless drill / Stichsäge- etc. machines. Inaccurate work well here, rather spend more and swirl on the industry series. The 30% purchase price worth it just because of the frustrations.