"Howard Beel" wrote in message
news

"Jon Elson" wrote in message
news
Howard Beel wrote:


I have found that most slitting saws have some runout and usually
need
a touch up when mounted in the arbor. For some reason there always
seem to be a few teeth that are higher than the rest. Some of the
blades
i indicated were 15 thou out of round and i sent them back to the
vendor.
After mounting the saw in the mill i indicate it and mark the high
teeth
then use a dumore tool post grinder to knock down the high teeth.
I like the peterson expanding flush mount arbors and robbjack
arbors.
Yes, I can certainly hear the runout as a zing-zing-zing as the
spindle
rotates. It doesn't seem to hurt the operation or affect surface
finish
much in the groove. So, I just live with it.

My guess is these things are punched out of blanks, rather than
machined and
sharpened on an arbor.

Jon

It would be intresting to how the saws are made. Since they are made
of HSS
i don't think they are stampings. Maybe the hardened blanks are
stacked and
ground on a specialized cnc grinder, grind a bunch of the same size
saws all
at once?

Best Regards
Tom.

I turned and milled the shank end of a 3/8" HSS drill bit into a 1/4"
hex with retention groove to snap and lock into an extension shaft. It
cut easily with HSS tooling.
-jsw