For those that obsess about Bhn

[Bret4207]

Found this locally. I have no connection with the seller, or interest in the items either. Just passing it along.

3 Rockwell hardness testers for sale-

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[Cadillac Jeff]

& for only 350 buck's you can Know sumthin that ya don't even need to Know !!

 

[smokeywolf]

If you're making knives or swords, it's well justified. Making bullets? Your money is better spent buying lead, alloy or new moulds.

 

[Rick]

I believe those Rockwell units are for measuring steel not lead. Different animal entirely.

 

[462]

& for only 350 buck's you can Know sumthin that ya don't even need to Know !!

And once you know that you don't even need to know what you know and what it is you have, you won't even know what to do with it.

 

[Rick]

And once you know that you don't even need to know what you know and what it is you have, you won't even know what to do with it.

Not entirely true. BHN can be a useful tool once you understand it's limits and use it in the proper perspective.

 

[462]

Not entirely true. BHN can be a useful tool once you understand it's limits and use it in the proper perspective.

Perhaps it was a weak way of saying that BHN is not the end all.

 

[Ian]

I could actually use the Rockwell tester if it runs the C scale, and that's not a bad price IF it is truly in good condition and has the stylus.

 

[smokeywolf]

I believe those Rockwell units are for measuring steel not lead. Different animal entirely.

Rick the Rockwell hardness testers use a diamond for testing "C" scale hardness on steels and a Brinell ball to test Brinell scale on softer materials like bronze, aluminum and lead.

 

[smokeywolf]

If the unit(s) don't include both the flat and "V" anvil, plus the test samples for calibration, you'd have to shop around for those. You need a spare diamond, the Brinell ball, calibration samples and the flat and "V" anvils to get pretty good use out of the tester.

 

[Ian]

One of the gun making books I have lists a hardness number for every single part, and they're all different. I was planning on using test files but a real tester would be much better.