Patent ID: 6868755

Claim:
A method of manufacturing a diamond cutter in which a plurality of diamond chips ( 6 ) are attached to an outer periphery of a circular cutter base plate having an axial hole ( 2 ) in the center at a fixed interval, comprising the steps of: punching a steel sheet metal material in a circular outer shape ( 1 ); forming an axial hole ( 2 ) in the center of the outer shape ( 1 ); next drawing said steel sheet material so as to manufacture a cutter base plate ( 5 ) in which a curved surface ( 3 ) being wholly point symmetrical about the axial hole ( 2 ) is formed between said axial hole ( 2 ) and the outer shape ( 1 ); and sticking a plurality of diamond chips ( 6 ) to an outer periphery of the cutter base plate ( 5 ) having the curved surface ( 3 ) at a fixed interval.