What is the function of a "depth stop" on a milling machine?

The function of a depth stop on a milling machine is primarily to limit the vertical movement for consistent cuts. By setting the depth stop, the operator can determine how deep the cutter will penetrate into the workpiece during each pass. This is crucial for ensuring uniformity in the thickness or depth of cuts across multiple workpieces or within a single component.

Having a depth stop allows for accurate and repeatable machining operations, particularly when producing parts that require precise dimensions. It helps to avoid the risk of overcutting or damaging the workpiece, thus enhancing both the efficiency and quality of the milling process. This feature is especially beneficial in workshops where high precision is required, as it summarizes the importance of control and repeatability in milling operations.