Equal first, in my opinion it concerns with this sheet to a design flaw that has a lot to short service life result. I own a BOSCH GOP 250 E Professional and I have gained this part especially for complicated sawing work. Through the catastrophic life of the special tools (the same problem as with the metal saw blades) connected with the extremely high prices decreases the acceptance of this tool with me now to the level of grinding and leveling work, because those are the only things that work so easily. Too bad, because a delta sander and a trowel machine I had previously possessed. But back to the actual diamond saw blade. First work that I have done so had to remove old joints between tiles, which to a maximum length of 10 cm, so not much. That this sheet very well mastered. I can say no more to life in this work. It may be suitable for this and ONLY this !? For me, it has held up well, the 10 cm, well, after all, and maybe it also creates an additional 10 cm or even more. The next work was then the Ausschlitzen for a windowsill indoors. On each side 3 cuts in the depth with lengths of 5 cm. The layer consisted of more than 1 cm plaster and then including normal brick. First cut cut already was a breeze, the second with problems, the third section no longer went! The reason, on the face of the tool was to see not a single diamond granules more. So raised the old diamond wheel on the angle and with a lot of dirt, but it quickly ends the work. If we compare times but the diamond disc of the angle grinder with the diamond wheel here. When Angle diamond grains in the disc are cast integrated, in this blade are glued to the metal! Sorry, but this can not hold, not their liability. The blade under the diamond granules is not even roughed up, perhaps to provide even for extra grip. Here at the local hardware store, the sheet for 60 EUR is offered! I got it here on Amazon for over a third of the price, but I am nevertheless extremely disappointed. In my opinion, it should not come on the market with this structural weakness. This is waste of resources, customers are alienated and the acceptance of the really ingenious technology this multitool falls into a bottomless pit.