| 摘要 |
PURPOSE: A Kevlar drill is provided to improve the reliability of quality by cleanly drilling a hole on Kevlar fiber. CONSTITUTION: A kevlar drill(100) is composed of a shank(40) for fixing a drill body(50), the cylindrical drill body extended from the shank, and a blade unit(60). The blade unit is extended from the end of the drill body. A through hole is formed at the side of the drill body, and discharges foreign matters.
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