Switch - Army Knife Keys [upd]
Switch Army Knife Keys
5. Comparison with Existing Products
- United States: Most states allow 58mm blades (under 2 inches) on keychains, even in schools or government buildings (check local laws). New York City, California, and Massachusetts have specific restrictions on concealed carry, but the classic Classic SD is usually legal because the blade is non-locking and under 1.5 inches.
- United Kingdom: You may carry a folding pocket knife with a blade under 3 inches that does NOT lock. The Victorinox Classic SD (58mm blade) is legal for EDC in the UK. The larger 91mm models (with locking blades) are not legal without "good reason."
- Japan: Blade length limit is 6 cm (2.36 inches), so 58mm (2.28 inches) is legal, but carry it deep in your pocket, not clipped visibly.
- Australia: Strict laws. In Victoria and NSW, you need a "reasonable excuse" (e.g., work, hiking). A keychain knife for "just in case" may be illegal.
- Mechanical durability: The USB blade requires at least 5000 insertion cycles; the pivot must last 10,000 switch operations.
- EMI isolation: The RFID antenna must not couple with the secure element’s crypto engine.
- Power: A 50 mAh battery would power Bluetooth for 1 month, but charging must not interfere with switch rotation.
If you prefer a professional finish, consider these ready-made organizers or components: Go to product viewer dialog for this item. Defy Key Organiser Silver