Well I bought this Bohrtiefenbegrenzer rings of Westfalia and was thus at least in time, though not beautiful, prevent the machine was pulled out of his hand.
Now the Meisterdübler. Because the drill of Dübler will draw beautifully kept and super Bohrtiefenbegrenzer stop in time. Go ratzfatz and is super easy to use.
From time to time man must think, in what order one sets the holes, but it works.
The helpers from Bosch has a revolver with lots Böhr holes in it, which always have it in the middle, that is, this machine here already sometimes impractical for robust bronze sleeves are here obviously been used, since the guide and the low wear are super. The anchor helpers from Bosch costs 5-10 more, which is here for quite foolproof and robust. Sometimes less is more.