Standard function: 1. Heat treated steel vertical drill-resistant pins on both side of cylinder
2. Mushroom counter pins resistant to attack.
3. 10 rounded-head picking proof combination pins
4. Owner key: 5 pcs
5. Owner card: As a indication of the key duplication and quality guarantee Optional Function: 6. Service key system: 1pcs,Once the owner's key be used, the service key will be disabled.
7. Master Key or KA are available
8. Finish: 01-Brass polished with varnish
02-Bright Nickel plated
03-Satin Nickel Plated