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  2. Bore Through Tough Concrete and Brick With These Masonry ...

    www.aol.com/lifestyle/bore-tough-concrete-brick...

    4-Cutter SDS+ Carbide Hammer Drill Bit Masonry Kit. If you plan on drilling through concrete with rebar, save yourself time and money by using these heavy-duty Milwaukee bits.

  3. Drill bit - Wikipedia

    en.wikipedia.org/wiki/Drill_bit

    The brad point drill bit has the outside corner of the cutting edges leading, so that it cuts the periphery of the hole before the inner parts of the cutting edges plane off the base of the hole. By cutting the periphery first, the lip maximizes the chance that the fibers can be cut cleanly, rather than having to be pulled messily from the timber.

  4. Core drill - Wikipedia

    en.wikipedia.org/wiki/Core_drill

    A modern core drill is a drill specifically designed to remove a cylinder of material, much like a hole saw. The material left inside the drill bit is referred to as the core. Core drills used in metal are called annular cutters. Core drills used for concrete and hard rock generally use industrial diamond grit as the abrasive material and may ...

  5. Hole saw - Wikipedia

    en.wikipedia.org/wiki/Hole_saw

    A hole saw (also styled holesaw), also known as a hole cutter, [1] is a saw blade of annular (ring) shape, whose annular kerf creates a hole in the workpiece without having to cut up the core material. It is used in a drill. Hole saws typically have a pilot drill bit (arbor) at their center to keep the saw teeth from walking. The fact that a ...

  6. Bore Holes in Concrete, Wood, and Plastic With the Best ...

    www.aol.com/lifestyle/best-cordless-drills...

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  7. Watts Brothers Tool Works - Wikipedia

    en.wikipedia.org/wiki/Watts_Brothers_Tool_Works

    Watts Brothers Tool Works is a tool manufacturer located in Wilmerding, Pennsylvania.They are known for manufacturing drill bits that can drill square holes, [1] [2] including blind holes, which cannot be made with other methods such as broaching.

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