Hand-held 20x measuring scope


I bought a Lee Lead hardness Testing kit to test the hardness of lead alloys
I use for casting. My hardness tester at work won't go down that far. This
thing works by applying 60 pounds of force to a ball that indents the lead
and then you use the 20x scope that has a scale from 0-.100" in .002"
increments. You measure the width of the indent in the lead and look it up
on a chart that tells you the Brinell hardness. This is also the "strength
of the material in PSI. So, you adjust the pressure on the lead to 10%
below the strength of the lead, but high enough pressure to get some plastic
deformation.
Great tool! Everybody I've shown this to wants a scope. I haven't been
able to find them separate from the kit, has anybody seen any available?
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Reply to
Buerste
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That is a Micro-Mike pencil microscope made in the USA!
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You can find them several places incuding here:
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Reply to
anorton
Thanks!!!
I am the Sword of my Family and the Shield of my Nation. If sent, I will crush everything you have built, burn everything you love, and kill every one of you. (Hebrew quote)
Reply to
Gunner Asch
Neato, the look a little better constructed than the old Radio Shack 30 bangers (although the RS versions do have a light, which is handy).
Jon
Reply to
Jon Danniken
I made one of those about 35 years ago, back when I was casting and shooting competitively. I used a small magnifier with a reticle built in. It probably wasn't 20 power but it worked pretty well. Same kind of magnifier we used to measure the pellet hole distance from the X at turkey shoots. :-) ...lew...
Reply to
Lewis Hartswick
What does Lee say? You _have_ asked them, haven't you? ;)
Rat Snack sells a 30x lighted pen scope, or did. Ca $30.
-- Some people hear voices. Some see invisible people. Others have no imagination whatsoever.
Reply to
Larry Jaques
Lee has some spare parts for stuff listed on his website, might be you could get one there.
Edmund has a wide variety of pocket microscopes both in their gadget catalog and their optics one, some a lot cheaper than RS. If you need the measuring reticle, you can buy several Lee kits and still come out ahead, though. Kind of spendy from Edmund. Good, but spendy.
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has some pocket-sized specimens, too, no reticle. Lots of other goodies, some actually have metal involved, like gears.
Lee has a short article in his 2nd edition loading manual relating lead hardness to bullet velocity. If you haven't seen it, you need to if you're doing anything with cast bullets. A hardness tester is a good first step, next, you need a chronograph.
Stan
Reply to
stans4
Fred Folwer will probably jump in here on this one. His outfit makes one of these also #52-662 020
See:
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Enco used to handle these.
bob rgentry at oz dot net
Reply to
Bob Gentry
I've thought of buying the Lee tester and comparing it to my Lead Bullet Technologies tester as a sanity check.
Have you looked at
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Wes -- "Additionally as a security officer, I carry a gun to protect government officials but my life isn't worth protecting at home in their eyes." Dick Anthony Heller
Reply to
Wes

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