1. This lock is suitable for door thickness 18mm-35mm
2. Pay attention to whether the triangle edge of the mounting plate is facing upwards and align the door edge
3. Extend the bending groove and fold in half.
4. The two mounting plates must maintain the same height.
5. Fix the position of the door lock mounting plate and trace the opening position with a pen.
6. Take off the door lock mounting plate and open the hole.