System Two - Random Key System
- System Two uses Baton's 6000 series virtually pickproof detainer disc system, which offers over 1 trillion different key combinations.
- No manager access (i.e. no Master Key)
- Used with all 681 Series cylinder locking Storage Master latches.
- Supplied with 2 'S' keys with code tags per lock.
System Three - Master Key System for Control
- System Two uses the same key system as System Two, but uses a restricted (R) keyway profile to provide total key control by management.
- Used with all 681 Series cylinder locking Storage Master latches.
- Supplied with 2 'R' keys with code tags per lock.
- No master key is supplied with the order. Master keys may be ordered separately.
| Stock No. | Description |
| 6522DB21 (System Two) | Random Key System |
| 6522MB21 (System Three) | Master Key System |
 6522DB21 & 6522MB21 |