What is a tool library in the context of CNC machining?

A tool library in CNC machining refers to a comprehensive database or collection of all tools available for use on the CNC machine. It organizes information about each tool, including specifications such as size, type, geometry, and material. The tool library plays a crucial role in machining operations as it allows for the efficient selection, management, and utilization of tools during the programming process.

Having access to the tool library ensures that operators can quickly identify the right tool for a specific job, which helps in preventing errors and optimizing machining processes. It also allows for the easy tracking of tool wear, which is essential for maintaining high accuracy and quality in machining projects.

The other options do not accurately describe the function of a tool library. A storage area for raw materials, a tool path planner, and a workpiece holder refer to different components and functions within the machining environment, whereas the tool library specifically deals with the organization and inventory of tools used in the CNC processes.