I've always Swisstech on this keychain. So far, there is also every security check, whether the airport or Bundestag, come through, it can be so really mithinnehmen everywhere. The blade is often open the packages or separate tape used sometimes to go to clean fingernails. It is not very sharp, is sufficient for these and other everyday purposes but from perfect. The bottle opener is a bad design and useless. That should have been otherwise resolved by lever handle but you can open with the Swisstech still Kronkorkenverschlüsse. The screwdrivers are very useful and hold well for most screws. In this case, the second arm of Swisstech is used as a turning aid. Overall fit and finish is very good, the Swisstech is stable and sturdy and has survived every application, even if working with raw forces. Personally, I go without the Swisstech in your pocket is no longer out of the house and can thoroughly recommend it to anyone.