Multi-cutting-edge round nose milling cutter

The utility model provides a multi-blade round-nose milling cutter which comprises a cutter head part, a plurality of first blades, a plurality of second blades and a plurality of third blades, and the plurality of first blades, the plurality of second blades and the plurality of third blades are uniformly and spirally wound on the cutter head part respectively. The end portion of the first cutting edge, the end portion of the second cutting edge and the end portion of the third cutting edge are mutually staggered, and the multiple cutting edges are evenly arranged on the tool bit part in a mutually staggered mode, so that the abrasion degree of each cutting edge is reduced, and meanwhile smooth chip removal is guaranteed. 本实用新型提供了一种多刃圆鼻铣刀，该多刃圆鼻铣刀包括包括刀头部、多个第一刀刃、多个第二刀刃和多个第三刀刃，多个第一刀刃，多个第二刀刃和多个第三刀刃分别均匀地螺旋环绕在刀头部上，第一刀刃的端部、第二刀刃的端部和第三刀刃的端部相互错开，通过多个刀刃分别均匀并相互错开地设置在刀头部上，降低每个刀刃的磨损程度的同时，还保证排屑的流畅。