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HRC Rockwell hardness test ? #8063320 11/25/20 12:31 AM
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Drahthaar Offline OP
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How do you guys test your blades for Rockwell hardness ?
Thank You Forrest

Re: HRC Rockwell hardness test ? [Re: Drahthaar] #8063620 11/25/20 03:27 AM
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Rockwell hardness tester is what I use. I'm interested to see what others use as well.

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Re: HRC Rockwell hardness test ? [Re: Drahthaar] #8063743 11/25/20 05:28 AM
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I use a Ames style hand held rockwell tester.

Last edited by Bama2; 11/25/20 05:29 AM.

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Re: HRC Rockwell hardness test ? [Re: Drahthaar] #8064356 11/25/20 07:31 PM
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Rockwell is what I used years ago when I was a teenager and worked for Dresser Industries as a machinist.

Re: HRC Rockwell hardness test ? [Re: Drahthaar] #8064372 11/25/20 07:47 PM
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I worked in Quality Assurance for 30 years and used Rockwell units exclusively. That's one reason I went with one for my knife shop.


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Re: HRC Rockwell hardness test ? [Re: Drahthaar] #8065001 11/26/20 03:31 AM
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Thank you all, Forrest

Re: HRC Rockwell hardness test ? [Re: Drahthaar] #8065325 11/26/20 03:08 PM
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Cool old tester

Re: HRC Rockwell hardness test ? [Re: Biscuit] #8067421 11/28/20 04:01 PM
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Originally Posted by Biscuit
Cool old tester

Yes sir, it's old but still accurate. I check it weekly with a lab certified test standard!


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Re: HRC Rockwell hardness test ? [Re: MikeC] #8067621 11/28/20 06:43 PM
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Originally Posted by MikeC
Originally Posted by Biscuit
Cool old tester

Yes sir, it's old but still accurate. I check it weekly with a lab certified test standard!

Mike, that is the oldest Rockwell Tester I have ever seen. I started using on in 1976 that was a later model than yours, but it was still a hand crank. They replaced it with an electric travel - digital head unit and I still liked the old time one best, except for having to remember to change the weights. It sure shows the quality of their machines to see that old one still working.

Re: HRC Rockwell hardness test ? [Re: Drahthaar] #8067660 11/28/20 07:27 PM
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What’s minimum hardness for a file to skate?


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Re: HRC Rockwell hardness test ? [Re: Drahthaar] #8067869 11/28/20 10:49 PM
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Most files will skate at around 57 which is still hard enough to hold a decent edge. I my humble opinion the magical HRC 60 is over rated but it sells!


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Re: HRC Rockwell hardness test ? [Re: MikeC] #8071459 12/01/20 03:06 PM
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Originally Posted by MikeC
Most files will skate at around 57 which is still hard enough to hold a decent edge. I my humble opinion the magical HRC 60 is over rated but it sells!


I agree with you 100% bro, most knife buyers don't have a clue.

First of all my 60HRC may be your 58 HRC or vise versa; most instruments are off + or - 2. I don't even mess with it any more, handheld or portables are only close, they are not dead nuts. I'm not sure if you remember several years ago I asked you what you used because I was getting various readings with mine.
My next door neighbor works for a company that heat treats aviation parts each part they heat treat comes with a specification that has to be dead on. I give her a blade in the morning and that evening she brings it back to me with a certified HRC. And they nice thing; it's free banana

I like what Kevin Cashen said, HRC is over rated, Test, test and more testing if far more superior than HRC!

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