A question for anyone who has made or has thot about making a rotary tool
shank, like for attaching cutoff wheels.
What is an easy to find material for making a rotary tool shank? I was
thinking maybe using some rivet. Whatever, the qualities of the metal rod
have to be something like this.
...Drillable metal, not extremely hard.
...Diameter exactly 1/8" quickly flaring to 3/16" or whatever at some point
(it can be cut).
To accuratly center the screw hole in the end of the shank, the unmade
shank can be inserted into a drill or rotary tool and spun against a
stationary drill bit.
Thanks in advance.
Yes, I have made them for specialty industrial applications but for what you
are doing, why bother? Go to a good model shop. Dremel makes them and so do
a number of others. Many are better than Dremel and they are cheap.
I take you are talking about 1/8 in. shanks.
I have made several adaptors for my router to take slitting
saws and special cutters and a longer shank for the finger
joint cutter etc. I used plain old 1018 either hot rolled
or cold rolled steel. Didn't heat treat or anything special.
Enco (http://www.use-enco.com ) sells drill rod that you can
probably turn to what you've described.
Personally, I'd just use one of the standard mandrels from any of
the rotary tool manufacturers and spend the time making something
out of wood :-)
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