| 摘要 |
To provide a processing device for a tempered glass in which a period of employable time is significantly increased. The processing device (8) for processing a chemical tempered glass (1) having a surface reinforced layer, which is rotated around its shaft center and vibrated in a direction of extending the shaft center, is provided. At least an outer surface of a front end thereof is formed to be a surface (8b-1) for retaining diamond grind grains, and a concave portion (30) is formed on a central part in a radial direction on a front surface (8c) thereof. |
