Strong Iron Construction: Made from sturdy iron Component, the template resists wear and deformation, guaranteeing Stable throughout your door hinge installation projects Versatile Compatibility: Designed for standard sized door frames, this hidden hinge template works seamlessly with most residential and commercial concealed hinge applications Enhanced Efficiency: The slotting template significantly improves processing accuracy while reducing time consuming measurements, making it ideal for Accuracy hidden hinge installations Simplified Installation: Includes both upper and lower hinge positioning templates in set, eliminating the need for multiple fixtures and streamlining your workflow Accuracy Alignment: This concealed hinge template ensures accurate drilling and slotting for 6 inch hinges, minimizing installation errors with its precisely engineered guide holes, Manufacturer: NVOQILIN