90 degree positioning squares made of aluminum alloy, 12 x 12 cm clamping square, right angle clamps, woodworking tool for clamping boxes, frames and shelf cabinets.

Anodic oxidation makes it durable and rust-resistant. High hardness, rustproof, non-corrosive, for permanent use.

Perfect 90° Corners: This precise clamping square is designed to be fixed to boxes, frames, etc., to help you square during gluing. This right-angle positioner has two extra notches. True right angle for inside and outside squares. Base and fold for straight and parallel alignment.

Instructions for Use: Place a square in the corner of the two pieces you need to square and secure with a set of clamps. Metric and inch graduations. Precise calibration, easy operation, won't easily damage fragile cut edges.

Professional design: designed for attaching to boxes, picture frames, shelf cabinets, and for use on outside corners, etc., to help square during gluing. Beveled edges are easy to handle and won't damage fragile cut edges.

Wide application: you'll have exactly what you need to perfectly create boxes, drawers, cabinets, frames, furniture, etc. Some woodworkers even find it useful to incorporate them into their jigs and fixtures. Satisfaction - Great utility - Square efficiency.