This Geepas Square starts as a solid piece, extremely stable cast aluminum tool plate. This large plate is carefully machined in multiple high RPM passes on our state-of-art CNC equipment. The result is a single piece square with a 10" blade and handle. Our manufacturing process ensures square is accurate to within one-thousandth of an inch or less along the full length of the tool. A far higher degree of the square then what is possible with the typical two-piece design. Easy to read measurement scales are laser etched on both sides of the scale.