A heavy-duty 65mm TCT core bit specifically designed for drilling large-diameter openings in masonry for air conditioning installations.

• Where is the DH-QKK065-E1 applied?
  • Air conditioning pipe and drainage installations.
  • Ventilation and extraction duct openings.
  • Large electrical conduit penetration work.
  • Brick and masonry wall drilling applications.
• What are the advantages of the DH-QKK065-E1?
  • Tungsten carbide-tipped teeth for aggressive cutting.
  • Industry-standard 65mm diameter for AC systems.
  • Accurate and clean circular openings.
  • High stability during large-diameter drilling.