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Is a dive knife neccesary or useful for free diving or skin diving?

Discussion in 'Beginner Freediving Q&A' started by Conan777, Feb 20, 2018.

?

Is a Dive Knife/EMT shears a helpfu tool for free diving or skin diving (NOT scuba)?

  1. Yes

    10 vote(s)
    76.9%
  2. Not neccesary nor useful.

    3 vote(s)
    23.1%
  1. Conan777

    Conan777 Member

    Local Time:
    11:51 AM
    I know that a dive knife is necessary for scuba divers. But what about for free-divers? I am specifically addressing recreational free-divers and NOT spearfishing. If a dive knife or trauma shears is useful for free-diving, why so?
     
  2. hteas

    hteas Well-Known Member

    Local Time:
    7:51 AM
    It would be very useful if you dive around a lot of abandoned monofilament.
     
    SubSub likes this.
  3. Ama

    Ama Member

    Local Time:
    8:51 AM
    If you are diving in fished areas or areas with a lot of kelp, a dive knife can save your life. I am a recreational freediver and I always have one, as does my dive partner.
     
    SubSub likes this.
  4. MAKO Spearguns

    MAKO Spearguns MAKO1 Supporter

    Local Time:
    11:51 AM
    Carrying a good cutting device is probably more important when freediving - since you have much less time to resolve an entanglement.

    Fishing line can be present in almost any body of water. In addition, some of the newer fishing lines are synthetic dynema or kevlar like materials. these fishing lines do not degrade, they are extremely thin and able to cut your skin, they are very strong and they have very good abrasion resistance.

    A dive knife is also useful for spearfisherman to dispatch a fish. If you are not spearfishing and would prefer to not carry a knife, we offer an inexpensive line cutter which will cut most fishing lines and cords and is extremely sharp and is probably a better tool than a knife for quickly cutting a line.

    [​IMG]


    We also sell shears, which are popular with lionfish hunters for trimming venomous spines, but they are not as quickly deployed and used - as compared to the line cutter shown above - so i would not recommend them as your sole cutting device when freediving.

    Thanks!

    Dano
     
    SubSub likes this.
  5. Davos

    Davos Member

    Local Time:
    11:51 PM
    I own one but rarely carry it. I've actually needed one on a couple of occasions and have also become entangled a couple of times (but was able to get free). I'd recommend getting a small one that's easy to grab - entanglements can put you in awkward positions and moving around at depth isn't always easy.


    Sent from my iPhone using Tapatalk
     
    SubSub likes this.
  6. Bill McIntyre

    Bill McIntyre San Clemente, CA Staff Member Supporter Forum Mentor

    Local Time:
    8:51 AM
    I won't dive without a knife. Scuba divers have time to deal with entanglements. Free divers don't.
     
    SubSub likes this.
  7. Brochman

    Brochman Member

    Local Time:
    4:51 PM
    I would suggest that if you do carry a knife whilst doing any form of diving then carry it on your weight belt rather than on your calf as if anywhere is likely to get caught or tangled it will be the knife on your calf. Many divers wear two knives one of them being an emergency knife if the other is lost the emergency knife often is strapped to the left bicep or forearm. Stainless steel shears are another option and come in there different forms the black handled ones below would be no use to me as i wear 5mm gloves for diving in cooler waters. The best piece of advice i can suggest is no matter what option you go for wether it be a knife,line cutter or shears always make sure they are sharp before every dive if you do not know how to sharpen them then learn as a blunt blade in any form is of no use when you need to cut yourself free. I make sure my diving knives can cut through paper and will cut any monofilament ,rope or kelp much better than shears or a line cutter will.
     

    Attached Files:

    Last edited: Apr 22, 2018
  8. Bill McIntyre

    Bill McIntyre San Clemente, CA Staff Member Supporter Forum Mentor

    Local Time:
    8:51 AM
    I like to carry my primary knife on my left forearm. Its easy to see and easy to get to instantly. A knife on a weight belt doesn't do much good if you drop the weight belt.

    Then my backup knife is in a pocket sewn on the left thigh of my wetsuit.

    Both of my knives have a wrist loop of bungee cord attached. My hand goes through that loop before I take the knife out of the sheath. If I drop the knife, it isn't lost. And if I finish cutting kelp and want to use two hands to grasp a fish, I don't have to waste time putting the knife back in the sheath. I just turn loose and let it dangle from my wrist.
     

    Attached Files:

    japppo, SubSub and Brochman like this.
  9. Brochman

    Brochman Member

    Local Time:
    4:51 PM
    Tried my primary knife on my forearm Bill and found it gets in the way too much but my back up knife is exactly the same as my primary knife so that the back up knife (if needs to be used)will feel just as familiar as the primary knife and is strapped to my left bicep so if i did drop my weight belt i have the same knife on my arm. Good idea having the sewn in pocket. I personally prefer paracord rather than bungee on my knives as i find when they are on the bungee they move around too much. Everone to there own.
     
    Last edited: Apr 22, 2018
  10. Bill McIntyre

    Bill McIntyre San Clemente, CA Staff Member Supporter Forum Mentor

    Local Time:
    8:51 AM
    I like the bungee cord since holds the knife in the sheath. I couldn't find a photo that focused on that, but in that last one where I'm holding a yellowtail with Daryl Wong, you can see the bungee stretched over the back of the sheath.
     
    SubSub and Zaka like this.
  11. Bill McIntyre

    Bill McIntyre San Clemente, CA Staff Member Supporter Forum Mentor

    Local Time:
    8:51 AM
    OK, here's one that shows the bungee over the rear of the sheath as well as the knife on my left thigh. bill's ship.jpg
     
    SubSub likes this.
  12. SubSub

    SubSub Well-Known Member

    Local Time:
    5:51 PM
    This is the essence of it all. If it happens you better have a good sharpe knife, otherwise things can turn for the worse very fast.
     
  13. SubSub

    SubSub Well-Known Member

    Local Time:
    5:51 PM
    Bill knows his shit. Take his words for granted.
     
  14. ricki

    ricki Well-Known Member

    Local Time:
    11:51 AM
    There is nothing special about free diving which removes the need for a hook knife or knife. If fact it is even more important in some respects than with Scuba diving. It is peculiar that free divers may feel the need to skip certain common sense safety aids because ... I have no idea why. Physics is physics and it is good to have options.
     
  15. Alina

    Alina Well-Known Member

    Local Time:
    4:51 PM
    I have an Eezycut on my weight belt for the longest time. it's never in my way.
     
  16. Jellythings

    Jellythings Supporter Supporter

    Local Time:
    11:51 AM
    I am never without my Mako line cutter. I spend most of my time in Florida freshwater and have swam through monofilament twice. The comfort of knowing I can happily slash through a tangle if I really get caught is so much better than panic and... #$€%÷!