To improve the workability in removing a coating material by removing the residual matter generated according to cutting of the coating material from a cutting member by means of a brush driven when a movable supporting body is parted from a base after cutting the coating material.

The base 6 and the movable supporting body 9 are parted of itself by the energizing force of a spring 1a when the pressing force in the direction of bringing the base 6 and the movable supporting body 8 closer to each other is released after the completion of the cutting of the coating material 3. When the parting state is attained, a knob 23a is manually operated to move shaft body 23 back and forth in an axial direction and to turn this shaft body around the axis, thereby removing the residual matter, such as strip length 34, the brush. At this time, the large residual matter, such as strip length 34, may be easily removed even if the brush is not used. The brush removes the residual matter, such as chips, of the coating material 3 sticking to a cutting member 7 and V-groove guide 5 and the front surface 15 of the base near the same by the operation of a cleaning implement 20.