Usually the boxes of screws come with the bottom, more silver bit. But today’s box had the duller grey, bit with a green lap band. No idea if one is better than the other or not.

Edit: Thanks to @0x0@infosec.pub for the wiki article!

Bits like that are used for impact drivers

https://en.wikipedia.org/wiki/Impact_driver?wprov=sfla1

  • RunningTowardTheVoid@lemmy.world
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    20 hours ago

    That reduced diameter acts as a spring to absorb some of the torque being transmitted from the impact driver to the fastener.

    The straight bit will not flex or elastically deform, but will fail in torsion without warning. These bits are not “impact rated”, but are meant to be used with hand tools.

  • neidu3@sh.itjust.works
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    20 hours ago

    It’s green because it’s not quite ripe yet. Leave it in the sun for a few days, and it’ll be good to go.

  • Luminous5481 "Enemy of the State"@anarchist.nexus
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    20 hours ago

    that green band is a torsion zone. that bit is made to work with an impact driver. the shape spreads the increased torque over a larger area, making the bit last longer.

    the plain bit is made for a regular drill, you can not use it in an impact driver unless you want to risk breaking it.

    • nocturne@slrpnk.netOP
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      19 hours ago

      I had no idea that is what these type bits are. I bought a whole bunch of the dewalt clam shell cases full of bits from woot years ago, two of the cases are all this type bit. I am moving those into my impact driver bag.

      • tal@lemmy.today
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        15 hours ago

        Huh. I had no idea that one would use an impact driver on Torx screws.

        I kind of mentally associate Torx with (delicate) personal electronics and associate impact drivers with big, heavy pieces of hardware with rusty bolts.

        • TranscendentalEmpire@lemmy.today
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          15 hours ago

          Torx is pretty standard for just about any kind of hardware nowadays. It’s actually more appropriate for construction than delicate electronics as it allows a lot more torque with less slipping. One of the benefits of a Phillips or flathead is that you’ll probably strip the screw before you over torque and break something.

        • nocturne@slrpnk.netOP
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          14 hours ago

          I am using a cordless impact driver, which is like a cordless drill. Rather than what a lot of people imagine, an air driven impact wrench.

          Vs

          My impact driver accepts the same bits I would use in my cordless drill. I do have some attachments so I can use sockets and such in it for auto repairs. But I now have a cordless impact wrench I use for that more often.

  • X@piefed.world
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    18 hours ago

    It’s got that glow in the dark upgrade, for when you need to fasten screws in stealth. Handy!

    • nocturne@slrpnk.netOP
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      20 hours ago

      That is where I was leaning too. It was the only bit I used today, and it performed well enough. I did strip one screw, but that was my fault, and it backed out just fine.