Most discs will not stick to the grinder for more than a few minutes. In fact, some of them are thrown out of the grinder within seconds of turning them on. I thought it was a pad for my Bosch grinder so I bought a new one. Same problem. I then tried it with a higher quality disc and viola! No more trouble. These discs are great if you intend to use them for block sanding, but purchase better quality discs for use with a random orbital sander.
PEGATEC Quality 2X0 04X7 Stainless Aggressive
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KSEIBI 686012 4 1/2 Inch Flap Disc 80 Grit Aluminum Oxide 10 Pack Auto Body Sanding Grinding Wheel.
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