TOOL TIME- Simple Hardness Testers- TSUBOSAN hardness testers HRC40~HRC65
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- čas přidán 9. 07. 2024
- Hey everyone! This is the first of a new series I'm going to be doing for different tools that I use on a daily basis or new tools that I get for the craft. This particular video is on the TSUBOSAN HRC40~HRC65 hardness testers which are extremely handy little tools as you'll see in this video. I may perhaps try and do a more scientific video with steels at each of the different hardnesses but this video just does a cursory look at how they work. Thanks for watching and make sure you subscribe and leave a thumbs up if you found the video entertaining or useful!
TSUBOSAN HRC40~HRC65 hardness testers-amzn.to/3CCXyYk
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Camera gear for filming this video
Lumix s5 and kit lens- amzn.to/3MHqLWK
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I recently got these as well. It’s a “must have” tool for the knife shop.
I just ordered this set two days ago. Good information.
Proper 'steel' for durability as a knife blade is a combination of hardness and toughness. The 'combination' of this can be seen as 'content' of elements I won't go into here, as familiarity of such... should all ready be in the mind set of those reading. The point to be evalusted is that 'content' can become visable when one 'grinds' the steel on a fine wheel, and one takes note of the SPARKS (fireworks) that occurs after the sparks depart the wheel. The intensity, the color (with a black back ground) should be in your observation, and simply grinding a 'good' file, and a 'cheap' file (or chisel), and ones with known corundum or tungsten... and you can EDUCATE YOURSELF to determining quickly the 'nature' (not just the hardness) of the steel being evaluated. DIFFEERENT locations of a 'well crafted' blade should present 'differently' for instance, as should the 'handle' of a good file vs. the end of it. Beware of being fooled by 'plating,' as a cheap chrome plating sparks nicely, so can nickel steel that's been 'de-plated.' )
I've had this set as well for a few years now. Great tool for the knife shop! I personally like to lightly file a flat surface of the piece I'm testing. I can feel how the file bites and then very clearly look at what kind of scratches the file left and that way the files also last for a long time. Great video btw!
Awesome! Thanks for sharing your thoughts on this one! I definitely think that’s a better way to test. I may do another video in the future with more test pieces
Very good video... I can see how it would be beneficial to have those...I probably should look into that now lol
👍👍👍
I got this same set of files. I tested it on a batch of 80crv2 that I targeted for 60hrc and got similar feedback. 60 would scratch the finish but didn't dig in. 65 would bite but not really well.
Hello các bạn
Does it work on aluminum?
I’m sure it does!
Aluminum hardness is not tested on Rockwell C scale.
Only A and B
Thank you for the video. I think you might be going too hard on these files, which will compromise their lifetime. There's an explanation video from the manufacturer that emphasizes gentle usage: czcams.com/video/njhI8tKN3bg/video.html
You're using these files improperly brother