Durable Steel Gap-Adjusting Wrench for Flag Hinges Key benefits Built to last: made from robust steel, the wrench resists bending and breaking for long service life under regular use. Precise gap control: adjustable gap-width mechanism lets you widen or narrow the door gap by turning left or right, enabling accurate alignment for different door types and hinge setups. Easier hinge adjustments: ergonomic, user-friendly design simplifies work in tight spaces and on difficult installations, reducing time and effort. Designed for flag hinges: specifically made for adjusting flag hinges on doors, including cleanroom doors and security doors, to ensure correct alignment and reliable function. What it does for you Solves misalignment issues by giving fine control over door gap and hinge position, preventing rubbing, poor seals, or uneven closing. Minimizes repeat adjustments thanks to a sturdy construction that holds settings under regular use. Makes on-site work faster and safer with an ergonomic handle and straightforward left/right adjustment. Compatibility and function Intended for flag (wing) hinges and compatible with a range of door types and hinge configurations. Adjustment performed simply by turning the wrench left or right to change the gap width precisely. Practical use scenarios Facility maintenance: align flag hinges on cleanroom doors to maintain proper seals and controlled environments. Security installations: fine-tune hinges on security doors to ensure smooth operation and reliable locking. Building repairs and installations: use in tight or awkward spaces during hinge replacement or routine door maintenance. Materials and performance Material: heavy-duty steel for high strength and durability. Performance: resistant to bending and breaking, suitable for frequent professional or DIY use. Why choose this wrench You get a purpose-built tool for flag-hinge adjustments that combines durability, precise control, and ease of use to keep doors aligned and functioning correctly.