A reciprocating saw blade is a type of cutting tool designed for use with a reciprocating saw. These blades move back and forth rapidly, allowing them to cut through various materials like wood, metal, and plastic. They come in different lengths and tooth configurations, making them suitable for specific tasks, such as demolition or fine cutting. The material of the blade is also important; common options include high-speed steel (HSS) for durability and bi-metal blades that combine flexibility and strength. Choosing the right blade enhances cutting efficiency and extends the life of the tool.