This paper analyses the geometrical character of curve of edge of form milling cutter, and infers the mathematical equations of curve, The center coordinates of conical button-shaped are evaluated.

This paper simplifies the gear change calculation and machine adjustment in machining equiangular helix conical milling cutter with non-circular gear method.

The paper introduces a new designing method of cutting edge of conical ball nosed milling cutter and the defining model of the cutting edge corresponding to the new designing method;