Reamers are specialized cutting tools used in machining to enlarge or finish holes in various materials, such as metal or wood. They create a smooth, precise surface and are often used in manufacturing and construction. Reamers come in different shapes and sizes, depending on the specific application and the desired hole diameter. These tools can be operated manually or with machines like lathes and drill presses. A common type of reamer is the twist reamer, which features spiral flutes for efficient chip removal. Proper use of reamers ensures better fit and alignment for components, enhancing the overall quality of the finished product.