Cylinder: 1-1/4" 32mm Mortise Cylinder Z70 3keys-(m3)

Door Thickness: 48-51mm (1-7/8" to 2")

Backset: 70mm

Lock: US ANSI-AA m3 key duplication monitoring

Since 1968, the launch of the first security product, MEDECO continuously improves the quality of security and created anti-imitate lock technology. With the third generation of m3 triple lock point technology, it continued advantages of last cylinder. New patented technology allows cylinder arrange 13 billion separated passwords. m3 combined with Hong Kong's first monitoring system and cylinder duplication which prevents unauthorized duplication of keys. It guarantees the keys can only be carried out at the request of the customer or copied from MEDECO’s official dealer.