Cross Test And Plumb Level

Cross Test and Plumb Level are two types of measuring tools commonly used by craftsmen in the field of construction and carpentry.

1. Cross Test: A cross test is a tool used to check the accuracy of a surface or object in relation to a reference line or plane. It consists of two perpendicular spirit levels mounted on a sturdy frame. The spirit levels help determine if a surface is perfectly horizontal or vertical. This tool is particularly useful for aligning and leveling objects such as shelves, cabinets, and frames.

2. Plumb Level: A plumb level, also known as a plumb bob or plumb line, is a tool used to determine the verticality or alignment of a structure or object. It consists of a weight (usually a metal or pointed object) attached to a string or line. When the plumb bob is suspended, it aligns itself with the force of gravity, indicating a true vertical line. This tool is commonly used in construction to ensure walls, posts, and other vertical structures are perfectly straight.

Both the cross test and plumb level are essential tools for craftsmen as they help ensure precision and accuracy in their work.