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I believe that any knife that can be opened one handed would qualify, no? This would be a "gravity knife": https://www.amazon.com/Victorinox-Swiss-Trekker-Poc

I believe that any knife that can be opened one handed would qualify, no? This would be a "gravity knife": https://www.amazon.com/Victorinox-Swiss-Trekker-Pocket-Knife/dp/B001DZT0M0/ref=sr_1_1?ie=UTF8&qid=1506777869&sr=8-1&keywords=swiss+army+one+handed+trekker https://www.amazon.com/Victorinox-Swiss-Trekker-Pocket-Knife... For context, I carried one of these throughout college for random boxes, cutting wires, etc.

StavrosK 9y ago
Wait a minute, I have one of those and they're hard enough to open two-handed, your arm would break the sound barrier before you could flick this thing with enough speed to open it one-handed. Is this really considered a gravity knife?
- zhengyi13 9y ago
  Flicks aren't required. The thumbhole on the blade is there specifically to enable a one-handed opening, and would likely therefore qualify as a "gravity knife", whatever we might think of such a classification.
  - KGIII 9y ago
    According to the article, flicks are the requirement. It's a long article and they don't get into it until quite a ways down. One handed would be okay, so long as it can't be flicked open by officers who practice flicking knives open on a regular basis and have pretty much perfected the art. But, yes, the flicking is a requirement - according to the article.
- maxerickson 9y ago
  Even holding the blade?
  - StavrosK 9y ago
    You can't really hold the blade, the blade in mine is so recessed that you can only open it by putting your thumbnail in a notch on the blade, but which is pretty hard and takes effort. I can definitely not hold the entire thing from the bit of blade that protrudes.
    - dunham 9y ago
      It looks like the linked knife has a handle sticking out of the blade specifically for grabbing on to. Perhaps you have a different model?
      - StavrosK 9y ago
        Ahh, I missed that that was a handle. Mine looks more like this: https://www.swiss-knife.com/media/catalog/product/0/_/0.9523.c.jpg https://www.swiss-knife.com/media/catalog/product/0/_/0.9523... When the blade is folded, only the little notch sticks out. Very hard to open.
- emdubs 9y ago
  Grab the blade and flick it while holding the blade. The weight of the handle will pull it open (at least partially). That is enough to qualify under this law unfortunately.
  - deleted 9y ago
    [deleted]
tomatsu 9y ago
> I believe that any knife that can be opened one handed would qualify, no? This would include things like box cutters (utility knifes).
huffmsa 9y ago
No, the opening needs to be done with some centripetal motion.

StavrosK 9y ago

Wait a minute, I have one of those and they're hard enough to open two-handed, your arm would break the sound barrier before you could flick this thing with enough speed to open it one-handed. Is this really considered a gravity knife?

zhengyi13 9y ago
Flicks aren't required. The thumbhole on the blade is there specifically to enable a one-handed opening, and would likely therefore qualify as a "gravity knife", whatever we might think of such a classification.
- KGIII 9y ago
  According to the article, flicks are the requirement. It's a long article and they don't get into it until quite a ways down. One handed would be okay, so long as it can't be flicked open by officers who practice flicking knives open on a regular basis and have pretty much perfected the art. But, yes, the flicking is a requirement - according to the article.
maxerickson 9y ago
Even holding the blade?
- StavrosK 9y ago
  You can't really hold the blade, the blade in mine is so recessed that you can only open it by putting your thumbnail in a notch on the blade, but which is pretty hard and takes effort. I can definitely not hold the entire thing from the bit of blade that protrudes.
  - dunham 9y ago
    It looks like the linked knife has a handle sticking out of the blade specifically for grabbing on to. Perhaps you have a different model?
    - StavrosK 9y ago
      Ahh, I missed that that was a handle. Mine looks more like this: https://www.swiss-knife.com/media/catalog/product/0/_/0.9523.c.jpg https://www.swiss-knife.com/media/catalog/product/0/_/0.9523... When the blade is folded, only the little notch sticks out. Very hard to open.
emdubs 9y ago
Grab the blade and flick it while holding the blade. The weight of the handle will pull it open (at least partially). That is enough to qualify under this law unfortunately.
- deleted 9y ago
  [deleted]

tomatsu 9y ago

> I believe that any knife that can be opened one handed would qualify, no? This would include things like box cutters (utility knifes).

huffmsa 9y ago

No, the opening needs to be done with some centripetal motion.