S&G 6700

Sargent and Greenleaf 6730

The 6730 is a UL Group 2 combination lock made by Sargent and Greenleaf. It is mainly used on safes and vaults.

Principles of Operation
The 6730 uses a wheel pack with three wheels, each with a single true gate and no false gates. The nose of the fence must be aligned with the gates of all three wheels in order to retract the bolt.

Vulnerabilities
The 1985 may be vulnerable to the following attacks:


 * Manipulation
 * Dialing observation