4PCS SDS Wall Drill Bit, Concrete Tungsten Carbide Drill Bit With 110MM Round Handle, High Strength, Stability, Fast Drilling for Air Conditioners, Wires, Washing Machines Pipe Punching Etc

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Product description

  • This products includes 30mm, 40mm, 50mm, 60mm or 68mm core drill bits, SDS + arbors, guide drills and 110MM or 350mm SDS + extension shank, you can choose the product package that meets your needs.
  • The teeth of the drill bit are sharp, the vibration is small during the opening process, and the operation is stable. Rounds alloy blade combinations, each blade to bear part of the workload, not prone to chipping off the edge.
  • Designed professional drain holes ensure smooth chip removal during opening. Comes complete with core drill, pilot drill, and SDS arbor, easy and fast to cut smooth clean hole.
  • Low pressure is essential to prolong the life of the cutting tips and get a straight cut. Hole openers cannot be used for concrete, load-bearing walls, walls with steel bars.

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