What is half section in technical drawing?

A half section in technical drawing is a representation that shows one-half of an object cut along a vertical or horizontal plane, revealing both the exterior and interior features. This technique allows for a clearer understanding of complex shapes and internal details without the need for multiple views. The cut surface is typically shaded or hachured to indicate material, while the uncut portion retains its regular appearance. Half sections are commonly used in engineering and architectural drawings to convey information efficiently.