Provided is a swarf collecting tool that collects swarf discharged in processing a workpiece, for example, in boring a hole in a workpiece with a blade-shaped object, is disassemblable with ease when the swarf collecting tool is clogged with the swarf, and has a blade-shaped object protruding amount adjusting function of suppressing movement of the blade-shaped object through the workpiece by a predetermined depth or more. A swarf collecting tool 10 is mounted to a drive 5 for driving a blade-shaped object 1 in processing a workpiece 50. The swarf collecting tool 10 includes: a rear portion 30 configured to hold the blade-shaped object 1 inserted therethrough and to rotate together with the blade-shaped object 1; a front portion 20 through which the blade-shaped object 1 is inserted, the front portion 20 including a swarf discharge portion 24d configured to discharge swarf 42 produced in processing the workpiece 50 with the blade-shaped object 1, and a protruding amount adjusting mechanism configured to adjust a protruding amount of the blade-shaped object 1; and a bearing 60 with which the front portion 20 and the rear portion 30 are coupled in a relatively rotatable manner.