90 Degree Positioning Squares in Aluminium Alloy, 12 X 12 Cm Clamping Square, Right Angle Clamps, Woodworking Tool for Clamping Boxes, Frames and Shelf Cabinets.

High-quality materials: Made of anodized aluminium alloy, durable and rust-resistant. High hardness, rustproof, corrosion-free, for permanent use.
Perfect 90° angle: This precise angle is designed for connecting boxes, frames, etc. It helps you align during gluing. This right-angle positioner has two additional notches. It creates true right angles for both inner and outer squares. The base and fold are straight and parallel.
Note: Place a square on the corners of the two pieces to be leveled and secure it with a clamp. Metric and imperial scales are included. The calibration is precise, the operation is simple, and the fragile cutting edge will not be easily damaged. Available in 12 cm, and sold in packs of two.
Professional design: specially designed for gluing onto boxes, picture frames, shelves, and outside corners, etc., which will help maximise the square footage when gluing. The beveled edge is easy to handle and won't damage the fragile cutting edge.
Wide range of applications: you'll have everything you need to make perfect boxes, drawers, cabinets, frames, furniture, etc. Some woodworkers even find it useful to incorporate them into their light fixtures and fittings. Satisfaction - great utility - the epitome of efficiency.