Treatment tool for endoscope and endoscope system

A treatment tool for an endoscope, comprising:

• an insertion part that is insertable into a body;
• and
• an operation part that is disposed on a base end side of the insertion part,
• wherein the insertion part includes
• a distal end part having a grip part that is openable and closable,
• a bendable part that is bendable and that is provided to be adjacent to the distal end part on a side of the operation part, and
• a connecting part that connects the bendable part and the operation part to each other,
• the insertion part is capable of being moved forward and backward along a longitudinal axis of the connecting part and being rotated about the longitudinal axis by an operation of the operation part,
• by an operation of the operation part, the grip part is closed and the bendable part is bent in a state where the grip part is closed, and
• a maximum bending angle of the bendable part with respect to the longitudinal axis is greater than 90 degrees.