LinkMejor Hinge Gap Adjustment Wrench Set, Heavy Door Hinge Adjustment Tool

Installate the appropriate-sized wrench head at the hallway connection point, then apply force and bend it to make the door gap more even and prevent jamming, sagging, or friction. It is recommended to keep the door closed before adjusting, as this makes it easier to judge the door gap position. Apply force slowly and evenly during operation to avoid damaging the door frame or hallway chain due to excessive force.