Most any conventional drill bit will spin against the cobalt plate without ever penetrating it. Whether the cobalt actually prevents the drilling or simply slows it down depends on the type of drill bit the safecracker is using. After accessing the lever or cam, the safecracker can use a punch rod to push them out of the way or bend them until they are no longer obstructing the path of the bolt.Īs a countermeasure to this, many safe manufactures have installed heavy cobalt plates to prevent or slow down drilling into the front of the lever and cam housing. The most direct method is to drill into the face of the lock in order to reach the lever or drive cam. There are several ways to use a drill to open a safe. The most common method safecrackers use to manipulate the safe itself is drilling.
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