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Ceramic knife and DIY sheath

Discussion in 'Knives and Cutting Tools' started by ScubaSparky85, May 28, 2011.

  1. ScubaSparky85

    ScubaSparky85 Manta Ray

    # of Dives: 200 - 499
    Location: Denver, CO
    800
    566
    93
    So I was walking through a store the other day and saw a ceramic (zirconium dioxide) knife on the shelf. The labelling said it is harder than hardened stainless steel (so it won't dull as easy) and will NOT rust or corrode under any circumstance.

    ... why are scuba manufacturers not making these knives? A quick google search says they are popular with divers, but I can't find a single one - so I'm thinking of buying some type of chef's knife and making my own sheath. Has anyone else used a ceramic knife underwater? What would be a good way to make sheath for it?
     
  2. Hashime

    Hashime Manta Ray

    # of Dives: 100 - 199
    Location: Southern Ontario
    500
    56
    28
    My only concern with a ceramic knife would be mechanical strength. Ceramic does not deform, so it is brittle unless part of a composite. A pure ceramic knife could not be used to pry or hammer underwater.
     
  3. ScubaSparky85

    ScubaSparky85 Manta Ray

    # of Dives: 200 - 499
    Location: Denver, CO
    800
    566
    93
    ah ha, touche! I didn't think of that. I may pick one up just to test that out! The knife I saw was the "Yoshi Blade" (as seen on TV), and you can get 2 for $20... and 2 free peelers!! haha! It was the same deal in the store all packaged together.

    If you can't use it to pry with, someone should at least make a ceramic line cutter! No rusting and staying sharp much longer than steel sounds like a win to me!
     
  4. Tortuga68

    Tortuga68 Divemaster

    # of Dives: 1,000 - 2,499
    Location: Puerto Galera, Philippines
    4,104
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    Take a length of 2" harness webbing & get a bootmaker to fold & stitch it into a sheath. I had one made for $5
     
  5. DevonDiver

    DevonDiver N/A

    # of Dives: 5,000 - ∞
    Location: Subic Bay, Philippines
    15,396
    8,167
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    You can buy nylon penlight or multi-tool sheaths in most camping/surplus shops. You'll sometimes find ones that will fit a steak knife size.
     
  6. ramasule

    ramasule Solo Diver

    # of Dives: 200 - 499
    Location: Edmonton, Alberta, Canada
    275
    98
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    I have an old rusty knife I'm waiting to try on pans LA RAZA.
     
  7. Dirty-Dog

    Dirty-Dog Frequently Censored ScubaBoard Supporter

    # of Dives: 500 - 999
    Location: Pueblo West, CO, USA
    1,988
    1,008
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    As mentioned, ceramic knives are only strong in certain ways. You absolutely cannot pry with one.
     
  8. ScubaSparky85

    ScubaSparky85 Manta Ray

    # of Dives: 200 - 499
    Location: Denver, CO
    800
    566
    93
    Thanks for all the replies!! Maybe I'll hold off on this idea... here I am thinking I'm some sort of genius... but I guess there's a reason they don't make them. lol!

    On the flip side, I got a pair of shears today - I never used them before, they're pretty damn badass! Like you read all over on these forums, they seem much more useful than a knife would be for most situations. I'm glad I finally got a pair!

    Hey Ram - CLICK HERE sssssssssss
     

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