| 摘要 |
PROBLEM TO BE SOLVED: To provide a drilling and/or chiseling tool which is free from a distortion problem to be generated when a cutting member is soldered to a support. SOLUTION: In the drilling and/or chiseling tool which is constituted of a support 1 and a cutting member 2... formed of a hard metal or a hard material, provided on the machining side end part of the support 1, for machining a material such as concrete, stone or masonry article, the cutting member 2... has at least a single expansion joint 2a... which is formed in parallel with the tool axis Z of the cutting member 2... along the length thereof. |
