The utility model relates to a tool carrier disk, especially relates to a tool carrier disk for boring an inside diameter. the utility model employs the following technical scheme: the tool carrier disk for boring the inside diameter is characterized of including a disk body, the center of the disk body is provided with a mounting hole, its cirumferential surface is provided with a tool mounting opening, and a screwed hole conducting with the mounting opening is arranged nearby the mounting opening. By means of the above technical scheme, it is capable of providing a tool carrier disk for boring the inside diameter capable of preventing the tool from breaking and improving a machining precision.