Model#: DEWND180066

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Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
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New items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Dewalt D180066 4-1/8 in. Bi-Metal Hole Saw

  • Dewalt D180066 4-1/8 in. Bi-Metal Hole Saw
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  • Double tooth design strengthens each tooth for longer life and improved durability
  • Sharper tooth geometry cuts material faster for faster drilling
  • Thick, hardened backing plates prevent thread stripping
  • Deep cut style hole saws will cut 2X the material in one pass
  • Increased high speed steel height (highest in the industry) improves hole saw durability
  • 4-1/8 in. Bi-Metal Hole Saw - D180066


Length: 4.75 in.
Width: 2.25 in.
Weight: 0.88 lbs.
Bit Material: Bi-Metal
Case Included: No
Drill Bit Type: Hole Saws
No. of Pieces: 1
Types Included: Bi-Metal Hole Saw


  • Plumbing: Entrance holes into junction boxes and through drilling for conduit
  • Mechanical and Plumbing: Through holes for pipe and T- joints into pipe
  • HVAC: Through holes for pipe and conduit
  • Pipe and Sprinkler Fitters: Saddle cuts into pipe for T- joints
  • Recommendations


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    Questions & Answers

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    Browse 1 question Browse 1 question and 1 answer
    How does this connect to drill?
    Ralph P on Aug 20, 2018
    BEST ANSWER: Your question will be best answered by a technician, who can provide you with the accurate information. The number to reach the manufacturer directly is 800-433-9258 or online at


    Dewalt Accessories Warranty

    The warranty on new DEWALT accessories is as follows:

    DEWALT offers a 30-day money back guarantee on all DEWALT accessories, except for pressure washer accessories. DEWALT accessories are fully guaranteed against defects in material and workmanship. The warranty does not cover misuse of product or normal wear and tear.