In article ,
Tim S writes:
Let's get this in perspective - this is a tool that you normally hold (some
people one handed).

The weakness above AFAICS:

a) The single point mounting - if that tool rotates the blade is going to
snare on the side of the slot and probably break.

b) Unlike when holding the tool, the operator is potentially exposed to the
disc edge - ie if the disc shatters, he will get bits of it in the face.
That could be solved by working from behind or from the side.

I'm not saying it's a good idea as stands - but let's be objective here

I wonder how long it takes to set light to a tupperware box
as you fill it with red-hot metal filings ;-)

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]