a trigger switch has a stationary contact and a moving contact provided inside a body and able to come close to and away from each other a contact drive member accommodated slidably inside the body to drive the moving contact , and an operating shaft having a first end engaging with the contact drive member and a second end which projects from the body , having a trigger configured to be operated by a user . clearance is provided between the first end of the operating shaft and the contact drive member upon engagement , which enables inclination of the operating shaft relative to the contact drive member .