1. Precise Adjustment of Hinge Play Each of our hinge keys is meticulously designed to provide precise control over hinge play. Ensures smooth and accurate alignment of doors and cabinets instantly, effectively eliminating uneven gaps, reducing noise, friction, and wear. An indispensable tool for your kit. 2. CostEffective Solution Place the hinge adjuster over the door hinge, then turn the key clockwise or counterclockwise to increase or decrease the hinge gap as needed. Fix the door or cabinet quickly, avoiding unnecessary replacements and saving time and money. 3. 4in1 Hinge Adjustment Tool Our hinge bending sets include 4 key sizes, compatible with hinges of 14 mm, 19 mm, 21 mm, and 25 mm, allowing you to work with a variety of hinge types—from small cabinet doors to sturdy entry doors. They meet diverse needs in homes and businesses. 4. Strength Materials Our hinge tool is made from a single piece of strength steel. The surface features a special anticorrosion coating to ensure durability and reliability. The ergonomic design includes a comfortable rubber grip, reducing fatigue during use.