A boring machine is a mechanical device used for enlarging or making holes in various materials through a rotary cutting motion. These machines are commonly used in construction, manufacturing, and other industries where precise and large-diameter holes are required. There are different types of boring machines designed for specific applications. Some common types include:

1. Vertical Boring Machine: Also known as a vertical lathe, this machine is used for boring cylindrical holes in large and heavy workpieces that are mounted on a vertical table.

2. Horizontal Boring Machine: This type of machine has a horizontal spindle orientation, and it is used for boring holes in large and heavy workpieces. It can be more versatile than vertical boring machines in certain applications.

3. Line Boring Machine: Used for precision boring of holes in a straight line, typically used in engine blocks, cylinder heads, and other components.