An angle plate is a work-holding device used in metalworking and machining processes to hold and secure workpieces in place. It is a flat metal plate that has a right-angled edge, typically made of high-quality cast iron or steel.

The right-angled edge of an angle plate is used as a reference surface for measuring and marking workpieces, and it can also be used to hold workpieces at a precise angle. Angle plates come in a variety of sizes and shapes, including rectangular, square, and L-shaped, to accommodate different workpiece sizes and shapes.

Angle plates are commonly used in milling machines, drill presses, and other metalworking machines to hold and secure workpieces during machining processes. They can be used to hold workpieces in a vertical, horizontal, or angled position, depending on the specific needs of the job.

There are many benefits to using angle plates, including:

1. Improved accuracy: Angle plates provide a precise reference surface for measuring and marking workpieces, ensuring accuracy and consistency in machining processes.

2. Increased stability: Angle plates provide a stable and secure base for holding workpieces in place, reducing the risk of movement or shifting during machining.

3. Versatility: Angle plates come in a variety of sizes and shapes, making them suitable for a wide range of workpiece sizes and shapes.

4. Durability: Angle plates are typically made from high-quality cast iron or steel, making them durable and long-lasting.

5. Cost-effectiveness: Angle plates are a relatively inexpensive tool that can improve accuracy and efficiency in machining processes, potentially saving time and money in the long run.