I have the drills had arrived together with a hammer Bestellt.Als everything I wanted equal to drill a hole but this was hardly possible that Maschiene vibrated so strong not even see that you konnt extent of depth gauge was off the wall. So either the drill or the Machine Production. That is why I stressed all drill a well in a 2 Maschiene and it ran not a single round. Have the drill can be replaced and what can I say the same Test match result also from the 2nd sentence no running around. Conclusion: These drills though supposedly branded goods are useless without limitation.