Terminal treatment method for a coaxial cable

A terminal treatment method for a coaxial cable including a core member having an inner conductor covered with an insulator, an outer conductor provided around the core member and formed of a plurality of wires, and a sheath covering an outer circumference of the outer conductor, the terminal treatment method comprising:

• exposing the outer conductor by removing the sheath on an end portion of the outer conductor;
• widening a terminal end of the outer conductor away from the core member by compressing a portion near the terminal end of the exposed outer conductor from an outer circumferential side of the coaxial cable to deform the terminal-near portion of the exposed outer conductor;
• mounting a core piece onto a terminal end of the core member to separate the widened outer conductor from the core member;
• loosening the plurality of wires away from the core member, exposing the core member;
• and
• extracting the exposed core member from between the loosened plurality of wires.