Ever find a speaker that would work but interfered and needed "tailored" to fit? Need to remove a small section of chassis for some reason of malfit? I use the dreml cutoff discs. The heavy duty ones work better if you're dealing with a large area. I have used those nibblers but they take forever and leave a messy course. <P>------------------<BR>Da Duffer

Good tip Duffer, I use my dremel all the time.<P>Rod<P>------------------<BR>

They work great. There are at least two types, the small brown ones and larger fiberglas-reinforced discs. The reinforced ones last a lot longer and don't tend to fly apart like the brown ones.<P>BTW when cutting metal, the brown ones are good for one job. I've found that once they cool down and you try and cut more metal, they'll immediately shatter. You can, however, get multiple cuts of plastic, wood, etc., out of the brown discs.<P>------------------<BR>

The biggest problem I have with the thin brown ones is that they never survive the storage if they remained chucked into the Dremel tool. However, they do produce a much thinner kerf than the thicker ones, which can often be desirable. I've used the thin ones with good success to cut off all the nails in the door facings, baseboard and base shoe for ALL of the trim in a 4000 sq. ft. house so that it could be reinstalled after a tornado. I didn't even use a third of the original pack of the thin disks for the entire job. Most of them wore down to tiny "washers" rather than breaking.<P>Dean<BR><P>------------------<BR>

I usually use a nibbler then finish with a Dremel.

The dremmel cutoff discs are a great way to go!!
Like a hot knife through butter.
For added versatility, I use the connection/extension that is shaped like a pen (for some reason, I can't think of the name of it) that hooks into the end of the dremel.
It's easier to hold and not nearly as bulky as the dremel itself. Only downside... I have to put the dremel between two blocks of wood or hold it down with a clamp or else it will vibrate right off of the bench when I'm using the pen attachment.

What do you do to prevent the iron filings from getting into the voice coil/magnet?

Use a zip-lock or other sandwich baggie and tape it up just leaving the metal area you are working on exposed.

That sounds simpler and more effective than my method. I tried holding a vacuum cleaner hose near the cut. Too many particles escaped.

If you are very careful, you can smear grease around the cut and it will trap the particles. Use degreaser to remove it. Brake cleaning solvent works fine for grease removal.
Curt