When it was replaced by Shutaro, it ceased to be absorbed because there was no thin tip pipe of the person entering inside. However, due to the size of the replacement chip bag, it is unknown whether the tip pipe was part of Shutaro main body.
It became useless in one year. The replacement chip will rust and will not come off. For the second one, remove the replacement chip after use. I do not use the tip set screws. If you are concerned about falling out, please use the setscrew.