Rolinson High Quality Top Security Padlock 40mm

Unique Lock Core Features:

• Key Steps: 0.05mm
• Leaf Blade Error: 0.01mm
• Locking Plate Clearance: 0.1mm
• Spring Leaves: Single type; any side force cannot open
• Material: Stainless steel, super anti-violence
• Magic Key: Changeable; error is 1, automatic idle cannot be opened