Endoscope treatment tool

An endoscope treatment tool comprising:

• a tubular distal-end member configured to be attached to a distal end of an endoscope;
• a rotating member comprising:
• a first through-hole extending along a direction of a longitudinal axis of the distal-end member, and
• a second through-hole extending along an axis perpendicular to an axis of the first through-hole,
• a linear connector connecting the distal-end member and the rotating member;
• and
• a treatment-tool body inserted into and rotatably held by the first through-hole, a part of the treatment-tool body being configured to perform treatment on living tissue,
• wherein the rotating member is configured to move in a direction along the axis of the second through-hole relative to the linear connector inserted in the second through hole,
• the treatment-tool body includes a first portion and a second portion, the second portion located distally relative to the first portion, a diameter of the first portion being smaller than a diameter of the first through-hole, a diameter of the second portion being larger than the diameter of the first through-hole, and
• a distal end of the rotating member is configured to abut a proximal end of the second portion.