The Corbin Russwin ML2048 NSM 626 Mortise Lock is a high-security lock that is perfect for use in residential and commercial applications. This lock features a 6-pin tumbler design and is made from steel for durability. The ML2048 NSM 626 Mortise Lock is also resistant to drilling and prying, making it a perfect choice for security applications. The Corbin Russwin ML2048 NSM 626 Mortise Lock is a high-security lock that is perfect for use in residential and commercial applications. This lock features a 6-pin tumbler design and is made from steel for durability. The ML2048 NSM 626 Mortise Lock is also resistant to drilling and prying, making it a perfect choice for security applications.