【High Quality】Made of high quality aluminum alloy, the surface is anodized, the workmanship is precise, corrosion resistant and durable. 【Highly Accurate Design】This woodworking angle is available in metric and imperial measurement units. That is, a 5.5 inch scale and a 140 mm scale. With its beveled edges and perfect 90° angles, it can be used with fixtures to check corner positioning, gluing wooden boards or right angle welding. 【Easy to Use】Simply place the 90 degree positioning square on the corner of the workpiece and fix it with a set of wooden clips. Easy to handle, without damaging fragile cutting edges. Simply place the angle bracket on the corners of the two blanks, select the appropriate hole to tighten the clamp, and complete the right angle fixing with screws or glue. 【Professional Tool】Designed to be fixed on most types of boxes, it helps with leveling during the gluing process. It can be used with fixtures to inspect and locate board joints and for right-angle gluing or