Already after less than 60 seconds using broke away two segments of the outer rim. Unfortunately landed a segment in my knee (a very painful and bloody affair)! The second segment was sucked from the connected vacuum cleaner.
Was used the sanding pad at a Bosch GWS 1100 (11.000min-1) in conjunction with Bosch extractor hood. According engraving on the grinding disc is the max. Speed 12.250min-1 and was therefore not Schittenkopf.