Round nose knife

The utility model discloses a round nose knife. The round nose knife comprises a knife handle and a cutting part, the cutting part is arranged at one end of the cutter handle, a plurality of circumferential blades are spirally wound on the periphery of the cutting part, a plurality of first end blades are arranged at one end, away from the cutter handle, of the cutting part, the first end blades and the circumferential blades are connected in a one-to-one correspondence mode, second end blades and fillet blades are sequentially connected between the first end blades and the circumferential blades in a transition mode, and the blade inclination angles of the first end blades and the second end blades are positive values. The cutting edge inclination angle of the first end cutting edge is larger than that of the second end cutting edge, a chip discharging groove is formed between every two adjacent circumferential cutting edges, and a chip containing groove is formed between every two adjacent first end cutting