Yep, I've found those polishing bits next to bloody useless too. And don't, whatever you do be tempted to use them to buff up a painted surface - you'l have a ravine in your paintwork down to the metal in a second.
And while we're at it forget the brass wire brush attachments too, unless you have a bottomless pit of money to replace them every five minutes. Oh, and If you don't mind a 'brassy sheen' on your workpiece as well.
