That is what our Keychain was born for. A quality tool that is small but mighty for everyday carry. The body is made of Grade 5 Titanium, a metal known for its highest strength-to-density ratio of any metallic element.
Milwaukee Compact Folding Knife with 2.5 in. Blade 48-22-1521 - The Home Depot
The Bladeclip: Titanium Pocket Knife+Quick Release Keychain by 3 Peters — Kickstarter
Chris Reeve Knives - Small Sebenza 31 Knife - S31-1200 - Stonewash Drop Point - Black Canvas Micarta / Sandblast Titanium
SHixu Folding Knife2Pcs Mini Keychain Knife Men's and Women's Pocket Knife Used for Cutting Rope, Paper Boxes and Fruits Easy to Carry Daily. Closed Length 3.15Inch/8cm : Tools & Home Improvement
Wesn Goods QR Titanium Keychain Attachment, Black - KnifeCenter - WESN031
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Best knives and multi-tools for your EDC - 9to5Toys
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High End Strong ER Tactical Fold Knives D2 Satin Blade TC4 Titanium Alloy Handle Outdoor EDC Pocket Folding Knife With Plastic Box Package From Allvin, $45.83
TUKK HD – Tactical Keychains