Why Does The Tool Bit Break Easily In Micro Milling? Micro milling is one of the three common micro cutting techniques used in micro machining. In micro milling, the tool bit with diameter as small as 0.1mm is held in a high speed spindle rotating at 20,000 to 150,000 rpm, and used to mill steel, brass and aluminum with depth of cut at about 30 microns and feed rates of 120mm/m to 24... https://gwangju2.top/