•【Wide Applicability】Suitable for high-temperature quenched doors including fire doors, clean room doors, security doors, and safes. •【Durable Construction】Made from high-quality steel, featuring high hardness and wear resistance for extended service life. •【Ergonomic Design】Smooth handle with ergonomic design ensures comfortable grip and effortless operation. •【Adjustable Range】Capable of adjusting flag-type hinges within a range of 19-25mm. •【Specialized Tool】Designed specifically for flag-type hinges, enhancing the installation and adjustment process of various door types. Specifications: •Material: Steel •Adjustment Range: 19-25mm •Compatible Hinge Type: Flag-type hinges •Limitation: Not suitable for hinges with connecting parts exceeding 5mm Package included: •1 x Door Gap Adjustment Wrench