The product is useful. But first you have to configure it. Everything in a totally confused drawing. Who has not Ikea Efrahrung, is probably already fit here. But as I said: It served its purpose. But one must not expect Präz. tool. Angles for corresponding cuts are only approximate. But straight cuts fold pretty good. It is important to one thing: The operation switches the angle grinder has to sit on the device. Is the on / off switch on the angle grinder fitted on the side it is covered by the chuck of the separating stand. Previously see is work quite wichtig.Bosch angle grinding. If you have clamped his angle, he can not be "just" relax for a hand cut. This one will think twice because the clamping but a little "fummlig". The build quality is solid verhältnismäßif. The partition pole itself but one must tighten on a (wooden) board during use. The cutting width is about 10 cm. Wider things can not be inserted. Altogether 3 points.