1.A necessary home improvement tool for door adjustable: double ended wrench, fit indoor or outdoor, adjustable standard door hinge range from Φ13-17.5mm/ 33/64'-11/16', hinges that flag-shaped and hinged in plain sight, such as fire doors - clean room doors - bedroom door - garage spring auto and doors equipped with sign hinges, but does not fit all hinges, some small hinges like 3.5-4inch, it is not fit, so before , please measure your hing sleeve hole diameter. 2.Door hinge tool: material selection - the hinges gap adjusting wrench is made of alloy steel, which has high strength and hardness, and can withstand large adjustment forces without deformation or damage. 3.Hinge gap adjusting wrench: special open 7.5mm/ 19/64' mouth, the door hinge adjustment tool can expand the gap by turning it to the left or narrow it by turning it to the right to accommodate various door types and hinges 4.Door repair specialist: as a door hinge adjuster tool, this hinge adjustment tool effectively treats common door issues such as sagging, sticking, or misalignment in a easy step. By using this hinge tool, you can restore smooth and consistent operation to your doors, ensuring they function properly once again