On 2015-11-12, wrote:
On Thu, 12 Nov 2015 06:12:13 -0600, Pete Keillor
wrote:

On 12 Nov 2015 02:23:39 GMT, "DoN. Nichols"
wrote:

On 2015-11-11, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
"DoN. Nichols" fired this volley in
:

How about a cut style knurling tool. It may cost more than the
lathe did, but it exists. :-)

Haven't been reading the rest of the posts, huh, Don? G

[ ... ]

So -- this would not cut small enough to do the knurling on
stainless steel dental picks as per the original question (which
typically are hollow for ease of control).

Yes -- I have used a scissors style knurling tool to knurl
Stainless Steel -- but that was 416 SS -- a lot more workable than
something like 304. :-)

And for hollow handles for dental picks, I think that the crush
force would be too great and destroy the workpiece. That is why I
suggested cut style knurling tools.

[ ... ]

Could you insert a close fitting drill rod into the dental pick
temporarily to prevent it from collapsing while it is being knurled?

Well ... the ones which I have seen are double-ended, with a
taper down to each pick insert, and I suspect silver solder to join
parts, but yes, you *could* support it that way, cut off a knurled
section, and then silver solder the cones in place. (Or perhaps, if it
all has to be stainless steel, TIG weld it with a machine to hold the
parts and rotate.

Some of the ones I have are small enough, and sold enough, so
they could handle the crush, but the better ones are larger diameter and
lighter wall thickness, so they are easier to control in the victim's
mouth (mine). :-) So, it depends, I guess.

Enjoy,
DoN.

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