The milling cutter is relatively thick and narrow, suitable for finishing.Woodworking routers have two main functions. One is engraving with milling edges, which is the main function of milling cutters. Thesecond is to use as a drilling tool to drill holes or perform milling operations on the sheet to open the hole. From a geometric point of view,the end gap of the milling cutter is very suitable for drilling operations or not for milling Important, especially for the latter, it makes chipremoval smoother.