While a small blade and other simple tools do come in handy at times, why carry around a separate multitool when you're already using a keychain? That's the thinking behind the all-in-one KeySnap carabiner, which is currently on Kickstarter.
The KeySnap|Titanium EDC Multitool Keychain Carabiner
Titanium Edc Keychain Bolt Carabiner / with adapter for 7 keys
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Keychains
Personalized Ultralight Anti Lost Titanium Carabiner Keychain Key
Here we have a custom anodized titanium carabiner clip. This TI-EDC carabiner clip is made from lightweight and high strength titanium. Carabiner
Titanium Carabiner Snap Spring Hook Clip, EDC Keychain Key Ring, Bronze Anodized
Our Titanium carabiner 2.0 is rounded for more capacity and has a lay-flat design. Made from solid, grade 5 aircraft Titanium, our carabiner is lightweight and super strong. Only weighs 6 grams (0.2 oz). No springs or levers to break, lose or wear out. Just a lifetime of reliable, strong service.
Polar Metals Solid Titanium Carabiner + Keyring Set Single
Titanium Keychain Holders : the keysnap
[Premium Titanium]: The carabiner keychain and key ring are made of high quality TC4 titanium alloy which is non corrosion, anti-rust, non-fade,
Green Beret Tactical Titanium Carabiner Keychain Clip Minimalist Keychain Key Clip EDC Quick Release Hooks
KeyUnity Carabiner Keychain Clip, Titanium Multi-tool Bottle