What problems will occur during the cutting process of the milling cutter?

Most of the milling cutters used in machining centers adopt a spring clamp set clamping method, and they are in a cantilever form when used. During the milling process, sometimes the milling cutter may gradually protrude from the tool holder, resulting in a complete loss of the workpiece, and the scene of the workpiece being scrapped. The reason is generally that there is a gap between the inner hole of the tool holder and the outer diameter of the milling cutter handle. Oil film, caused by insufficient clamping force.