Painter's Tape Shows Precise Square
Using a pencil line to check the accuracy of a square proves reasonably accurate. But I found that painter's tape provides a visual contrast for precise, easy-to-see results.
Advertisement
Apply a strip of tape pretty perpendicular—it doesn't have to be perfect—to a straight edge of the workpiece. With the head of the square tight against the workpiece and one edge of the blade over the tape, run a sharp knife along the blade, slicing through the tape, and remove the waste. Flip the square over and hold it against the knife line. If there's a gap, the square needs adjustment.
Have a shop tip to share? Email us your tip, photos or drawings, and contact info. Published tips earn money and tool prizes.