The quality of the drill is very modest, not run around. The depth stop can also attach just wrong and does not hold very well. Re-tighten the screw after 2 holes man must, otherwise disengages the stop and slide down! :-( You need to tighten from 2 of 3 depth stops a 2-er Allen, for the 10 drill a 2,5er Allen key. Both are of course not included. If one does not already own, which cost at the hardware store together more than here the whole set! And I guess that only a few will have a number 2 Allen. All in all a bad buy. One can indeed use the set, but I would not buy it again. Then prefer to buy for a few less only the depth stops that. But then in good quality The included here are good drills' before anything.
