JIS is only good for being cheap, and only works if you’re a precision robot.
You lose the autocentering and overtorque protection of Phillips, without gaining any of the advantages of Torx.
(Phillips has overtorque protection in the sense that your tool doesn’t break, the screw does; which doesn’t matter if you don’t need to unscrew it.)
I thought the whole “JIS is different from Phillips” thing was a misunderstanding and JIS is just a type of Phillips or something and it and “regular” Phillips are more or less compatible
I have this iFixit guide as my source: https://www.ifixit.com/Guide/Choosing+the+Right+Screwdriver+Bit/93991#s176809
According to that, the JIS screws have orthogonal inner angles, while the Phillips’ are rounded, resulting in the slipping bits.
However, some Phillips screwdrivers fill out that space, and thus won’t fully go into a JIS screw, and effectively be too small, stripping it.
The last time this thread came up there were some convincing comments suggesting that the over torque protection for philips was not an intended feature.
Using JIS basically requires buying a special high quality screwdriver set. A few years ago I bought a few Nintendo switch repair kits that came with JIS drivers, and ended up removing the screws with a drill. Since then I bought an ifixit kit, which has heads that are actually the right size - unfortunately it is too late for my poor switch, that is now slightly mangled beneath its case.
JIS!!!
And when some person inevitably uses a phillips on it, it will look like the picture above.
Why does this exist. Nobody has the driver for it. I could barely find a full size torx I needed for my car.
Alternatively everyone has the driver for it…
Given they are eventually putting the furniture together. It’s just they never get it apart but frankly that’s a problem for future me
JIS is only good for being cheap, and only works if you’re a precision robot. You lose the autocentering and overtorque protection of Phillips, without gaining any of the advantages of Torx. (Phillips has overtorque protection in the sense that your tool doesn’t break, the screw does; which doesn’t matter if you don’t need to unscrew it.)
I thought the whole “JIS is different from Phillips” thing was a misunderstanding and JIS is just a type of Phillips or something and it and “regular” Phillips are more or less compatible
Edit I found this: https://www.tekton.com/blog/jis-vs-phillips-screwdriver-tip-geometry-and-fastener-compatibility
I have this iFixit guide as my source: https://www.ifixit.com/Guide/Choosing+the+Right+Screwdriver+Bit/93991#s176809 According to that, the JIS screws have orthogonal inner angles, while the Phillips’ are rounded, resulting in the slipping bits. However, some Phillips screwdrivers fill out that space, and thus won’t fully go into a JIS screw, and effectively be too small, stripping it.
The last time this thread came up there were some convincing comments suggesting that the over torque protection for philips was not an intended feature.
Using JIS basically requires buying a special high quality screwdriver set. A few years ago I bought a few Nintendo switch repair kits that came with JIS drivers, and ended up removing the screws with a drill. Since then I bought an ifixit kit, which has heads that are actually the right size - unfortunately it is too late for my poor switch, that is now slightly mangled beneath its case.
Basically what I’m trying to say is fuck JIS.