Nite Ize Doohickey Key Chain Knife

Choose a shipping method
To buy, sign in as an REI Co-op Member or join now.
Members get an estimated 10% back on this item.

Members, get an estimated 10% back on this item as a part of your annual .

Conveniently accessible for everyday carrying, the Nite Ize Doohickey key chain knife easily attaches and detaches to key chains, backpacks and more.

  • Features

    • 2 in. locking blade made with corrosion-resistant 420j2 stainless steel with a high hardness level (51-54HRC) retains a sharp edge and offers durability
    • Lock-back design keeps the blade locked in place while in use
    • S-Biner® MicroLock® uses a twist-to-lock design that makes the knife easy to attach, detach and secure
    • Lightweight aluminum body is durable and easy to carry


    View all Nite Ize Keychain Knives
  • Technical Specs

    Best Use


    Knife Blade Type

    Straight Edge

    Locking Blade


    Number of Blades

    1 Blade

    Max Blade Length (in.)

    2 inches

    Closed Length

    3.99 inches

    Handle Material


    Blade Construction

    Stainless steel

    Phillips Screwdriver(s)


    Standard Screwdriver(s)



    0.05 pounds

  • Reviews
    23 reviews with an average rating of 4.7 out of 5 stars

    Loading Reviews...
  • Questions & Answers

    Loading Questions...