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Internet # 100098839

Model # FB-004

Store SKU # 577569

Top Rated

5/8 in. High-Speed Steel Forstner Bit (1-Piece)

$9.47
  • Best application on hand-held drill or drill press
  • For drilling straight, angled and overlapping holes in wood
  • Hardened steel body for longer life and sharper cutting edge
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Product Details

About This Product

The Diablo 5/8 in. High-Speed Steel Forstner Bit drills straight, angled and overlapping holes in all types of wood. The sharp spur ensures precise drilling and resists walking on the material. The bit has a double-ground, serrated edge for less splintering and chipping.

Highlights

  • Requires minimum chuck size of 3/8 in.
  • Drills straight, angled or overlapping holes in all types of wood
  • Forged construction of the hardened steel body warrants a long bit life and a sharp cutting edge
  • Steep, angled cutting edges produce smooth, flat holes and create chisel-like curls for fast, clean chip removal
  • Ultra-sharp spur resists walking on material and ensures an accurate hole
  • Return Policy

Product Information

Internet # 100098839

Model # FB-004

Store SKU # 577569

Additional Resources

Shop All DIABLO
From the Manufacturer

Specifications

Dimensions

Bit Diameter

5/8 in

Bit Length (in.)

3.5 in

Drilling Depth (in)

3.5

Shank Diameter

3/8 in

Details

Bit Material

High Speed Steel

Drill Bit Type

Forstner

Features

No Additional Features

Individual/Set

Individual

Material Application

Wood

Number of Pieces

1

Number of Pieces

1 Piece

Shank Style

Straight

Tools Product Type

Power Tool

Questions & Answers

can these bits be used in a woodturning lathe
ByJan 2, 2026
0 Answer | 
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will it cut threw knots
ByOct 25, 2025
1 Answer | 
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what are "threw knots"?

By|Nov 25, 2025
    0/0


    Is this only for wood or does it work on other materials
    ByOct 6, 2025
    0 Answer | 
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    Why on the box says 38. 10 mm but actual size 37.74 mm?
    ByJun 30, 2025
    0 Answer | 
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    What is the country of origin for these bits?
    ByFeb 11, 2025
    1 Answer | 
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    Made in Austria

    By|May 18, 2025
      0/0


      What does this bit attach to?
      ByDec 29, 2023
      1 Answer | 
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      It will fit in most drills

      By|Aug 30, 2025
        0/0

        (2)

        Will this bit drill a hole in a fiber cement fireplace liner
        ByDec 10, 2023
        1 Answer | 
        Answer This Question

        Not well. Designed for wood.

        By|May 18, 2025
          0/0

          (1)

          can it cut through steel?
          BySep 4, 2023
          1 Answer | 
          Answer This Question

          No. Designed for wood.

          By|May 18, 2025
            0/0

            (1)

            Viewing 1-8 of 61

            Customer Reviews

            4.7 out of 5

            • 4.7 out of 1,472 reviews
            • 94% recommend this product
            Filter by:
            Showing 1-10 of 1,472 reviews
            The bit did just exactly what it was intended for. I would repurchase it again. Although the shipping to the correct place was a little tricky it finally came. I have been so excited to use it to hang my bifold doors. It just made the area look amazing.
            by
            Excellent bit
            I bought the Ryobi set of forstner bits a couple of years ago. I needed an 1.25” bit, which was not included in that set. I ran down to HD to pick this one up. Right away I noticed that the blade takes up much more of the circumference vs. the ryobi bits. Then when I used it, wow, so much smoother and faster than my other bits with much cleaner holes. I’ve already purchased two more Diablo bits and am considering replacing all of my bits. Holes are clean and precise, both on the sides and bottom.
            by
              • Recommended
              Great bit!!
              Bought this bit today to help make a few jigs. Cut incredibly smooth edges with zero tear out making perfect repeated cuts, easy line up with center point for spot on accuracy and would highly recommend. Note-Adjusted my drill press speed due to large bit size to <1600 rpms (max recommended speed) and worked like a dream.
              by
                Smaller than on a box says
                on the box it says 38.10 mm but actual size 37.73
                by
                  1 found this review helpful
                  Cut well for cutting mortises in red oak. Nice shavings. No apparent dulling so far.
                  by
                  • Verified Purchase
                  Worked very well, smooth cut
                  by
                  • Verified Purchase
                  Perfect cut, perfect size
                  Using the 5/8 bit to make slots for 1/2 copper pipe to fit in. It's a perfect cut, perfect size, snug fit. This will be for a shoe rack, and I expect it to turn out quite nicely.
                  by
                    • Recommended
                    Precision bore at it finest.
                    by
                    • Verified Purchase
                    Awesome Forstner bit. Did the job perfectly drilling clean cut holes to install my horizontal black stair rails.
                    by
                    • Verified Purchase
                    Super sharp, shaving one layer at a time. Worth the investment.
                    by
                    • Verified Purchase
                    Showing 1-10 of 1,472 reviews