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Tubular Deadbolt is a type of lock that is installed by drilling two circular holes into the door one through the face for the cylinder and one through the edge for the bolt. The "tubular" name comes from the shape of the internal casing that houses the bolt mechanism. This design is widely favored for residential properties because it offers a high degree of structural integrity while being significantly easier to install than a full mortice lock. It serves as an ideal secondary security measure for front doors or a primary lock for internal offices and storage rooms.
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