Portsmouth & Southsea Locksmiths
Are you aware that even if a lock has a anti-snap line it does not mean that it is guaranteed to break off at the line to stop entry, in the vast majority of cases it still snaps in the middle. And even if the sacrificial section is removed, it can still be attacked again to gain entry.
New standards are now in place to test a euro cylinders strength and resilience against lock snapping attacks. The new British standard awards a 3 star rating if the lock has resisted a lock snapping attack and a 1 star rating means that it would also require a 2 star rated security handle to offer sufficient security against a snapping attack.
The significance of this is that a one star rated lock has not actually passed any snapping tests and might offer no more protection than a standard euro cylinder against lock snapping!