- Precision adjustment for flag hinges on commercial doors. This heavy-duty tool allows maintenance personnel and technicians to fix sagging doors quickly and accurately. - Steel construction. Made from high quality steel to withstand heavy use and resist deformation, providing a durable tool for all door repairs. - Multiple sizes available. Fits hinge gaps from 8.5 mm to 24.5 mm, ensuring compatibility with different commercial doors and hinge sizes. - Efficient and ergonomic. Ergonomically designed for comfort, enabling fast, precise adjustments and minimizing downtime. - Use scenarios - Correct sagging interior or exterior doors in a busy office building to restore proper swing and seal. - Adjust heavy flag hinges on storefront entrance doors after installation or renovation to improve operation and security. - Facilitate routine alignment across multiple doors in a warehouse or industrial facility, reducing maintenance time.