| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a drill blade allowing anyone to easily and certainly cut an aluminum layer and an expanded polystyrene layer, intermediate cover, for covering a coaxial cable. SOLUTION: This drill blade 10 is used for a drill for cutting and removing a part of the intermediate coating of the coaxial cable 7 held by a coating/ separating tool A. The intermediate part of a bar-like body 10a is provided with a large diameter collar part 10b for regulating an insert amount.</p> |
