1. Durable Aluminum Alloy Body: Durable aluminum alloy body with solid treatment, perfect 90 degree right angle welding of wood and metal, etc. 2. Check and locate angle: L-shaped corner clamp is easy to use, can be used with the clamping tool to check and locate angle 3. Ensure straightness and parallelism: squares interiors and exteriors are at right angles, ground to ensure straightness and parallelism. There are different holes to repair, to ensure your work is more convenient 4. Do not damage the cutting edge: 90 degree right angle corner clamp holds the joint at a 90 degree angle no matter if you just glue or use fasteners, it will not damage the fragile cutting edge 5. For woodworking and welding: can be used for woodworking and right angle welding, for wood gluing . Create right angle frames, right angle frames, photo frames, etc. to make your work easier and simpler Specifications: Item Type: Carpenter Clamping Tool Raw Material: Aluminum Alloy Uses: Can be used for woodworking and right angle welding. Used for gluing wood. Create right angle frames, right angle frames, photo frames, etc. to make your work easier and simpler Package List: 1 x Right Angle Ruler 2 x Calipers 2 x Adjustment Fixed Block