“Lock snapping” and “cylinder snapping” are methods used by burglars to break into a property. Lock snapping can be used on properties which have a euro cylinder. This technique requires ZERO skill by the thief to snap the lock. Euro lock cylinders are found on almost all properties that have UPVC doors, also some composite & aluminium doors use them too. They are also often used in commercial as well as domestic environments. To prevent lock snapping make sure a locksmith fits your euro cylinder lock correctly, in a way that it will prevent being snapped. Also it is important to have the correct size. A tested euro cylinder lock is the SS312 Diamond lock cylinder.