| 摘要 |
PROBLEM TO BE SOLVED: To provide a diamond tool sufficiently supplying working fluid with high pressure to a machining point when machining brittle material, and improving machining efficiency and the life of the diamond tool. SOLUTION: The diamond tool 10 for machining brittle material is integrally formed with a tool shaft 2 and a column body 1 in an axial direction, and has a plurality of supplying holes for the working fluid opening to a bottom surface portion and/or an outer peripheral portion of the column body 1. An opening portion 3 of the supplying hole is arranged in a spiral. COPYRIGHT: (C)2005,JPO&NCIPI
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