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  • Trango - Piranha Knife - One Color
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  • Trango - Piranha Knife - One Color

Trango Piranha Knife


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    • One Color, One Size

    30 Reviews


    At just 0.7 ounces, you'll forget the Trango Piranha Knife is even clipped to your rack until you need to cut out a blown section of rope or perform surgery on the cactus spine lodged in your foot. Even better, the integrated bottle opener will save the day when it's time to slug victory brews.

    • Surgical grade 440-C stainless steel holds a keen edge and resists rust and corrosion
    • Minimal design allows the knife to weigh in at a paltry 0.7 ounces
    • Carabiner hole and folding design allows you to attach the knife to your rack, key chain, or pack
    • Integrated bottle opener ensures you'll be able to quench your thirst
    • Item #TRG0057

    Tech Specs

    Blade Material
    440-C stainless steel
    stainless steel
    Claimed Weight
    0.7 oz
    Recommended Use
    climbing, hiking, camping
    Manufacturer Warranty
    1 year

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    LIfe Saver!

    • Familiarity: I've used it once or twice and have initial impressions

    When doing any sort of multi-pitch climbing, I've been in enough situations to know that a knife is an essential part of the rack!!! If you ever need to bail off of something big, it's incredibly handy to have a tool you can use to cut rope or slings to create rap anchors or for other self rescue applications. This guy provides all the sense of security knowing you're prepared, while being lightweight enough to leave clipped to the back of a harness or a rack and forget it's ever there. By far the most minimal design I've seen in this category--definite winner from Trango!!

    Best little keychain knife ever

      The awesome design doesn't allow the knife to open when its used on a carabiner. Perfect for a little hiking knife to throw in your bag and know that it won't pop open and cut anything in your bag.

      Smaller than expected

        The knife is smaller than expected. I am not sure if I missed the dimensions or if they are not there. I probably wouldn’t have ordered it if I had known the size but in actuality, I think it will work well and obviously weighs next to nothing so I am happy with it.

        Smaller than expected

        its SO TINY!

        • Familiarity: I've used it once or twice and have initial impressions

        I snagged this knife for my wife, who wanted a small knife for bikepacking. Here's what she had to say about it:
        It's ADORABLY tiny, like, smaller than your finger, and the photos don't do it justice, but for a compact knife when your space is limited, it's perfect. It's easy to toss onto a keychain, (or dangle from your saddle bag) and has a sharp blade for getting the job done when you need to cut rope, or whatever else you might need to slice up in nature.
        Because its so tiny, it is slightly uncomfortable to open and close, since there's little room for fingers to make adjustments, and most of us prefer to keep all digits in tact when out and about, which is why I knocked a star off. That being said, I'm not really sure how you could make a better blade retention system at that size without bulking things up.

        Small and Sharp

        • Familiarity: I've used it several times

        Great little itty bitty baby knife, will get a job done if it needs to. The serrated edge cuts well. Good for a laugh in any instance when the ol' Crocodile Dundee "That's not a knife, that's a knife." bit arises.

        Essential Tool for Big Wall Climbing

        • Familiarity: I've used it several times

        After a near "rope-stuck" event, I started carrying this on all my big climbs, and I think it is an essential tool to carry anywhere in the backcountry or even just camping. It is super light-weight, strong, sharp, and convenient. Because it weighs nearly nothing it doesn't bog you down on long exhausting trips yet it could do anything from cutting rope, slings, fabric, bandaging, meat, and thin wood. I can't believe I used to go climbing in the backcountry without this.

        Small and mighty.

        • Familiarity: I've used it several times

        There are many times when I've had almost had major rope catastrophes on the wall, from knots getting stuck to getting caught on things. I knew I needed to get an in-case-of-emergency knife so that's what this little guy does. Not only is it sharp, but it locks closed when you put a biner through it, which is my favorite feature. It makes me feel a lot safer. I thankfully have not had to use it yet, but if I did need it, I know exactly where I would find it, right on my harness!

        Doesn't get lost!

          I can't tell you how may times I've replaced my mini Gerber because it straight up disappeared. This guy lives on my car keys and isn't going anywhere! I've heard some people say they'd be hesitant to keep it on their rack since it opens easily- I don't think I'd leave it on there in my crag bag but it seems tight enough to be worth having on your speedloops if you're going to be on the wall for a long day.

          I don't lose this one!

          • Familiarity: I've used it several times

          My favorite tiny gerber has been lost and found and lost and replaced at least 6 times over the years, so this lil guy is now attached to my keys and going nowhere fast. It's always where I can find it when I need it.

          Great Mini Knife

          • Familiarity: I've used it several times

          I wanted a light weight knife for multi-pitches in case of emergency and I found it in the Piranha. A nice serrated edge would do the job if I needed it and the bottle opener doesn't hurt either.

          As a note though, if you keep this are for climbing, there is no cover on the blade, so be aware of where you are keeping it. While unlikely, it would be possible that something could slide over the top of the closed knife and be compromised by the knife's edge.

          Sharp and Sturdy

            I picked up one of these as a gift for my girlfriend, who's getting ready to aid The Nose and wanted a small knife that can be kept close at hand without getting in the way of things. Here's what she had to say:

            "I keep it in my big wall emergency kit. Small and cute, yet sharp and sturdy. I’ve used it to cut through a 9.5mm haul line with no real trouble."


              This little nugget is adorable. I keep one on a carabiner on my harness whenever I'm climbing. I've seen people get their hair caught on devices and need to cut it out. Or ropes get stuck on cracks and need cut. You don't think about needing a knife on a climb until you really need it, and then it's too late and people are coordinating how to get one up to you if you're lucky enough to have one elsewhere in the group

              Great Knife

              • Familiarity: I've put it through the wringer

              Super sharp, very well made, and small/light enough to keep on your harness or on a keychain. I've had this knife for over 5 years now and it's still going strong. Because of its small size, I've lost it multiple times over the years. My favorite thing about this knife is the blade, it's very sharp and doesn't need to be sharpened often. Also, because it's thin, it doesn't have as many carabiner requirements as other climbing knives.

              Small and nice

              • Familiarity: I've used it once or twice and have initial impressions

              So small I forget I have it on my belt even when at the gym. Hopefully not too small that ill forget I have it when I need it. So far ive used it to cut accessory cord and it worked great. I guess my only fear is that its so small I might drop it!

              Great Little Keychain Knife

              • Familiarity: I've used it several times

              This tiny little knife is awesome. I leave it on my keys and don't even notice it. The blade is super sharp and works exactly how I was expecting it to. Would be a perfect companion while doing any kind of climbing/mountaineering if you need to cut some rope in a hurry.