Leon wrote:

The back up pad how ever had a melted spot about the
size of a dime. Is this small hook and loop stuff really this delicate?

The Multimaster pad is rigid, compared to the foam pads on other
oscillating sanders. If you use them over just a small point, then the
foam flexes and a lot of power goes into the pad, not the abrasive. The
Fein keeps delivering the same power no matter how small the area, so
yes it's much easier to overload it in spots.

If you want a big squishy pad for working curves, then make yourself
one. It's pretty easy to make extra tools for a Multimaster. Just take
a steel plate, drill a hole in it and glue some foam on. If you have a
recent Multimaster with the star fitting, then recycle a worn-out
sawblade.

Modelled on the Oral-B "Hummingbird" dental flosser (Google - it's the
one you can convert into a lock-pick gun), I've built myself a
power-flosser for hippo teeth. There's a curved bow of steel rod witha
length of abrasive cord between the ends. Probably just a bit too
aggressive for dentistry, but it's just the job for "thrumming" bronze
castings to fettle them.