dremel or Drill attachment sanding disk

[KevTN]

I am beginning to make a bunch of drink coasters. that are 3.5 inch inner diameter with a 0.2 lip. Makes it very hard to sand. I have been looking for some kind of attachment, like 2 inch sanding disc that can either go on the end of my dremel tool or my handheld drill. 

 

Thanks

[lew]

https://woodturnerswonders.com/collections/sanding-items/products/heavy-duty-sanding-pad-holder-mandrel-2-inch-pair-1

[KevTN]

Perfect Thank you Lew!

[lew]