Tag Archives: double bit keys

The security problems of old double bit keys

Can you distinguish a double bit lock from a European cylinder?

Seaside or mountains? Dog or cat? Double bit or European cylinder? Life is full of choices and when you have to choose a lock for your front door the first decision you are facing is between a double bit lock and a European cylinder. It is a decision that can intimidate laymen, because the two types have various strengths and weaknesses. Let’s start to understand how to distinguish one from the other. It is very simple, let’s see how. Continue reading