On Wed, 10 Jan 2007 13:58:49 +0000, John Rumm
wrote:

[1] This was a blunt blade with a good many of its teeth missing - the
result of an accidental plunge too far through a wood frame into a lump
of concrete that ought not have been there. However even knacked blades
will continue to cut, although they get a bit hotter in wood.


The blades can be "filed" with new teeth with a Dremel and a cutoff wheel. Won't
be pretty, won't be terribly good, but better than binning them.


Thomas Prufer