Precisionmachined with graduated lines in inches and millimeters for clear readability and minimal measurement error. Durable metal construction provides lasting performance and maintains accurate 90degree alignment. 90 Degree Right Angles Positioning Square Clamp enables precise alignment in woodworking projects. Versatile for assembling wooden boxes, kitchen cabinets, drawers, picture frames, birdhouses, and more; adapts to a variety of woodworking scenarios with ease. Suitable for both amateur and professional woodworkers who seek improved craftsmanship and accuracy. Usage scenarios Use during kitchen cabinet installation and drawer alignment to ensure square, flush joints. Build wooden boxes or picture frames that require precise rightangle corners for clean, professional finishes. Create birdhouses or other small woodworking projects where consistent squareness enhances fit and finish.