I order a few last week and they showed up darn fast. I have only used the dewalt flap disks a hand full of times to strip paint off a boat. I had some 3/16 scrap that had been painted so I put the flap dish in and gave it a spin - my flap disk skills must suck cause all I was able to do was polish the edges...they didnt really seem to want to bite. If I worked right with the edge of the disk it worked better but then it buggered up pretty quick. Went back the the grinding wheel and got the metal all nice and shiny and cut up for some tests with my new 250 ex that should be here this week