Solid quality product

Now although I am still not come with this Qualitätsbohrerset by my natural granite, but is likely to provide the hardware used. In other stones but the drills go through like butter, even with an Accu-screwdriver. Beautiful is not the storage but can be opened cumbersome. The drill itself remain even after their respective application sharp and can even hope for longevity and a testament to the quality. A star I pull from for this unwieldy box, otherwise I have nothing to complain about .....