sourcing map 55mm Diamond Core Drill Bits Hole Saws Wet Only for Hard Concrete Brick Block Masonry Stone Tile Glass

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sourcing map 55mm Diamond Core Drill Bits Hole Saws Wet Only for Hard Concrete Brick Block Masonry Stone Tile Glass
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Product description

  • Drilling diameter 55mm 2.17"; drilling depth 58mm 2.28"; shank size 9.5mm 0.37". Non-slip triangle shank fits most electric hand drills and bench drills.
  • Large Clearance Hole Facilitates the entrance of cooling water and the escape of chips and other particles from drilling to aid in faster cutting and coring.
  • Dry or Wet Drilling Can be dry or wet drilling. To prolong the using life, it is recommended to be used with water for cooling and lubrication.
  • Sharp Cutting Edge The core drill bits cut clean and fast holes, and make drilling process much easier. Can be used on an electric hand drill or another machine, such as an rotary tool, hex, or round plus shank.

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