A metal angle is a structural component that is used in building construction and other industrial applications. It is a piece of metal that has been bent to form an L-shape, with two legs of equal or unequal length. Angles can be punched for an additional charge.

Metal angles are used for a variety of purposes, including:

1. Framing: Metal angles are often used to create frames for doors, windows, and walls. They provide structural support and help to distribute weight evenly.

2. Reinforcement: Metal angles can be used to reinforce corners and joints, adding strength and stability to a structure.

3. Brackets: Metal angles can be used as brackets to support beams, pipes, and other components in construction and industrial settings.

Overall, metal angles are a versatile and essential component in many construction and industrial applications, providing strength, stability, and support for a variety of structures and components.