What term describes the ends of bristle hair that are used for fine detailing?

The correct term that describes the ends of bristle hair used for fine detailing is "flag ends." Flag ends refer to the split or tapered ends of a brush or tool's bristles, which are specifically designed to enhance precision and allow for intricate detailing in various applications, particularly in painting and finishing work. This feature enables the bristles to splay slightly, which is essential for achieving fine lines and delicate work, making it ideal for detailing tasks.

The other options do not accurately describe this feature. Stiff ends typically refer to bristles that are firm and not designed for precision work. Tip ends may sound relevant but do not specifically indicate the fine detailing capability associated with flag ends. Flat ends imply a shape rather than a functional characteristic for fine detailing, focusing more on broader strokes or coverage rather than precision. Understanding these distinctions is important in the context of tools used for park maintenance and landscape artistry.