What is the purpose of a tool holder in milling?

The primary purpose of a tool holder in milling is to secure the cutting tool in place. A tool holder ensures that the cutting tool is firmly attached to the spindle of the milling machine, allowing it to operate efficiently and safely during the machining process. Properly securing the tool prevents vibrations and inaccuracies that could arise from a loosely held tool, thereby enhancing the precision of the milling operation.

Tool holders also facilitate quick changes of tools when necessary, maintaining productivity in operations that require different cutting tools for various tasks. By holding the cutting tool securely, the tool holder plays a crucial role in ensuring consistent cutting performance and achieving desired surface finishes on machined parts.