Which tool assists in leveling and plumbing masonry material?

The tool that is specifically designed to assist in leveling and plumbing masonry material is the masonry level. Masonry levels are characterized by their longer length and precision vials that provide an accurate reading of level and plumb. They typically have a robust construction that allows for durability on job sites, which is essential when working with heavy materials like bricks and blocks. The design of masonry levels ensures that the user can achieve a perfect horizontal and vertical alignment of masonry units, which is critical for structural integrity and aesthetics.

While a spirit level does aid in leveling and plumbing, it is generally shorter and more versatile for various applications, not specifically tailored for masonry work. A lumber square is used for measuring and marking angles, while a plumb bob serves to indicate vertical alignment but does not assist directly with leveling surfaces. Thus, the masonry level is the most suitable tool for ensuring that masonry materials are properly aligned and leveled.