This adjustable door hinge key from TAKTUK is designed to provide precise adjustments for various door types and hinge setups. Made of durable steel, it can be widened or narrowed by simply turning the key, ensuring proper alignment and functionality of fire doors, cleanroom doors, and doors with flag hinges. The ergonomic design and straightforward operation make adjusting door hinges easy, even in tight spaces or challenging installations. Adjust the width of your door hinges with precision - turn left to widen, turn right to narrow, to suit various door types and hinge setups. Constructed from high-quality steel for long-lasting durability, this tool can withstand regular use without bending or breaking. Specifically designed for use with fire doors, cleanroom doors, and doors equipped with flag hinges, ensuring proper alignment and functionality. The ergonomic design and simple operation make adjusting door hinges straightforward, even in tight spaces or challenging installations. Includes 1 piece per pack.