PROBLEM TO BE SOLVED: To provide an interdental cleaning tool of ISO size 1 and ISO size 2, endurable in practical use by setting a cross sectional area of a core part large, and setting a length of a cleaning part, allowing insertion between teeth long while sufficiently securing hardness rigidity of the cleaning part.SOLUTION: An interdental cleaning tool 1 is obtained by coating and molding a cleaning soft part 21 comprising an elastomer on a core part 12 comprising a synthetic resin and forming a cleaning part 2 to be inserted between teeth by the core part 12 and the cleaning soft part 21. The core part 12 is constituted of a core side taper surface 12a tapered toward the tip thereof, and the cleaning part 2 is constituted of a cleaning side taper surface 2a tapered toward the tip thereof. Angles θ1 and θ2 made by both taper surfaces 12a and 2a to a center line L of the core part 12 are set to become continuously or gradually small toward the tip of the core part 12.SELECTED DRAWING: Figure 3
