• Welcome to ScubaBoard


  1. Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.

    Benefits of registering include

    • Ability to post and comment on topics and discussions.
    • A Free photo gallery to share your dive photos with the world.
    • You can make this box go away

    Joining is quick and easy. Login or Register now by clicking on the button

Looking to buy a TI knife with at least a 6 inch blade

Discussion in 'Knives and Cutting Tools' started by Toby W, Jun 27, 2019.

  1. Toby W

    Toby W Angel Fish

    # of Dives: 100 - 199
    Location: Hollywood, FL
    14
    1
    3
    I'm looking to purchase a TI blade with at least a 6 inch blade. Anyone have any ideas on a good one that won’t break the bank or is anyone trying to sell one? Thanks.
     
  2. Brian G

    Brian G Nassau Grouper

    # of Dives: 100 - 199
    Location: Pittsburgh
    176
    116
    43
    I don't know how big your bank is, but the only ti knife I'm familiar with that has a greater than 6" blade is the Mission Knives MPK12 which retails for $430
     
  3. FezUSA

    FezUSA Nassau Grouper

    # of Dives: 50 - 99
    Location: Hiram, OH, USA
    168
    83
    28
    I have a 5" Hydralloy blunt tip made by Underwater Kinetics in black/yellow, they also make titanium versions in blunt and drop tip, but also still only 5"
     
  4. Zef

    Zef Divemaster

    1,618
    1,079
    113
    A quick google search shows 4 and 5 inch titanium blade dive knives are available. Any reason in particular you want/need a 6 inch+ blade?

    -Z
     
    Allison Finch and Mike1967 like this.
  5. Mike1967

    Mike1967 Manta Ray

    # of Dives: 50 - 99
    Location: Victoria, Australia
    785
    309
    63
    Was wondering the same thing.
     
  6. MAKO Spearguns

    MAKO Spearguns ScubaBoard Business Sponsor ScubaBoard Business Sponsor

    1,286
    666
    113
  7. Akimbo

    Akimbo Lift to Freedom Volunteer Staff Member ScubaBoard Supporter

    8,898
    7,222
    113
    Although some Titanium alloys have outstanding saltwater corrosion resistance, they tend to be softer (45-50 Rockwell) than decent 420 or better stainless blades. Very corrosion resistant stainless alloys like 316 are even worse. That relates to the cutting edge retention characteristics. Titanium will be much lighter than a stainless knife, especially with a 6" blade. However, that lack of mass makes it less effective for what large dive knives excel at, which is basically a hammer. Like most things in life, there are always trade-offs.

    Sharpness may not matter since most dive knives are better suited for spreading butter than cutting line. It all depends on what you plan to do with the tool.
     
    Bob DBF, HKGuns, letterboy and 2 others like this.
  8. davehicks

    davehicks Barracuda

    # of Dives: 1,000 - 2,499
    Location: Seattle
    369
    239
    43
    How about an <$20 Titanium ER Shear? Better for almost any purpose except entangling yourself with an object strapped to your calf. It will cut through steel wire or fishing line effortlessly and is a lot more practical than a big pig sticker.

    DGX Titanium EMT Shears | Dive Gear Express®

    Capture.JPG
     
    Skulmoski, backpacker99 and FezUSA like this.
  9. Brian G

    Brian G Nassau Grouper

    # of Dives: 100 - 199
    Location: Pittsburgh
    176
    116
    43
    The shears are good, but note that they are not actually titanium. They have a titanium nitride coating.
     
    Schwob likes this.
  10. Nays

    Nays Nassau Grouper

    # of Dives: 1,000 - 2,499
    Location: The West USA
    119
    185
    43
    Based scientifically on the knives I've found, y = kx
    The likelihood of of loosing your knife (y) is directly proportional to how much (k) you paid for it (x).
     

Share This Page