On 2017-01-22, Larry Jaques wrote:
On Sat, 21 Jan 2017 20:47:20 -0500, Bob Engelhardt
wrote:

[ ... ]

Also, the teeth are so small that I don't think that I could have
measured the angles very well.

Know anyone with an optical comparator?

Well ... I have one, but whether I am convenient is a different
matter. I'm too close to Washington DC (Northern Va, and I'm not sure
where the OP is located.

Enjoy,
DoN.

--
Remove oil spill source from e-mail
Email: | (KV4PH) Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---