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The framing square is a crucial tool in carpentry, primarily utilized for ensuring right angles. Its L-shaped design features a long and short arm, allowing carpenters to easily verify 90-degree angles, which are essential in various construction tasks such as laying out walls, floors, and roofs.

The accuracy and versatility of the framing square make it an indispensable tool for framing and layout work. It not only helps in measuring but also serves as a guide for cutting angles in building frame structures. This tool can also be used for applying the Pythagorean theorem to achieve square layouts, allowing for precise and level construction.

Alternative tools, while useful in their specific ways, do not specialize in creating or checking right angles. For instance, a box level is excellent for ensuring horizontal and vertical alignment but does not effectively check right angles. The sliding t-bevel is primarily used to transfer angles, while the chalk line is great for marking long, straight lines but does not measure angles. Thus, the framing square stands out as the dedicated tool for ensuring right angles in carpentry.