tri square

Used to precisely mark and verify right angles and straight edges during layout and assembly. The tri square consists of a rigid, flat blade set at an exact 90-degree angle to a sturdy stock, ensuring accurate alignment when checking corners or scribing lines. Its solid construction maintains squareness and stability, making it essential for achieving precise joints and clean fits. The tool is versatile for confirming perpendicularity and guiding saws or chisels in creating accurate cuts.