기능

• It absorbs dust emitted when drilling into concrete, etc., and realizes work in a clean environment.
• Since it absorbs dust, it can be drilled smoothly and the drilling time is completed in a short time.
• The adapter and the bit are easy to remove when replacing the bit because of round screw tightening.
• For drilling under chemical anchors, etc.
• Dust is absorbed not only in downward and sideways drilling, but also in upward drilling, reducing the burden on workers.