1.Notice:Hinge adjustment tool kit is designed for use on fire doors, cleanroom doors and security doors equipped with flag hinges.First, put the hinge repair wrench on the door hinge to be repaired. You can adjust the hinge gap by turning it left or right. It can effectively solve common door problems such as misalignment, sticking or sagging 2.Four Different Sizes: We provide four different sizes to suit most scenarios. This double-headed door hinge tool combines 14mm and 18mm, 23mm and 25mm. Whether you are repairing a misaligned door or ensuring that the cabinet closes seamlessly, this tool can easily make fine adjustments. It is an ideal and cost-effective investment for home use and professional installation 3.Precise Hinge Gap Adjustment Wrench: Each of our hinge wrench tools is meticulously crafted to provide accurate control over hinge gaps. Ensuring smooth and accurate alignment of doors and cabinets every time, effectively eliminates uneven gaps, reducing noise, friction, and wear. Essential tools for your repair kit 4.Cost-Effective Solution: Simply slide the hinge adjuster over the door hinge knuckle, Rotate the wrench clockwise or counterclockwise to increase or decrease the hinge gap as needed. You can repair the door or cabinet in seconds, avoid unnecessary replacements, saving significant time and money