In the manual category, some of the other locks that are highly popular and special other than the padlocks and deadbolt series of locks are lever handle locks, knob locks, interchangeable core-based locks, rim mortise locks, and many others. Lever handle lock is the choice of the majority of locksmiths,especially of the commercial sector. Like the deadbolt and the padlock which are best in residential areas similar to that lever handle, locks are special for commercial areas. Lever handle lock is unique and the best concept of locking both in terms of security and fashionable sense. Mainly hotel industry prefers to use lever handle locks for enhancing the beauty of the hotels along with a secure atmosphere. Locksmith Newark Nj is the locksmith of the commercial category and they also suggest lever handle locks for heavy use in commercial areas. regarding its construction lever handle lock hold, two-layer of locking system first is the simple lever based and the second one is the key specified both works simultaneously.