Features: Achieve excellent door hinge installations with this accuracy aluminum alloy door lock jigs, featuring adjustable mortise clamp for accurate hole positioning across various door thicknesses and lengths. Engineered with erosion resistant aluminum alloy construction, this multi functional door hardware tool offer 3x durability compared to plastic alternatives while maintaining lightweight maneuverability during cabinet or door installations. Ideal for enthusiasts and professional carpenter seeking stable door hinge alignment solution, this positioning tool simplifies complex woodworking projects for both residential and commercial applications. Perfect for installing hinges on interior/exterior doors, cabinet doors, or furniture pieces, this general jigs ensures stable drilling alignment even in humid environments thanks to its not slip grip design. The integrated safety locking mechanism prevents accidental shifts during operate , making this hinge hole locator essential workshop companion for creating professional installations with reduced setup time. Specifications: Component : aluminum Size: about 80x218mm/3.15x8.6inch Package Includes: 1xHinge Alignment Guide note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.