| 摘要 |
PROBLEM TO BE SOLVED: To provide a dressing tool that can properly determine a usage limit.SOLUTION: The dressing tool 2 for dressing a grinding abrasive stone of a grinding wheel includes: a dressing board 4 for dressing the grinding abrasive stone; and a supporting plate 6 in which the dressing board 4 is fixed to a top face 6a. The dressing board 4 includes: a first layer 8 bonded to the supporting plate 6; and a second layer 10 ground by the grinding abrasive stone. The first layer 8 and the second layer 10 have respective hues different from each other, so that a usage limit can be determined by the hues when the first layer 8 is exposed to the outside by the wear-out of the second layer 10. |
