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2.1 out of 5 stars. 7 reviews
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Mibro 7/8 in. Silver and Deming Drill Bit

Mibro 7/8 in. Silver and Deming Drill Bit

Item # 3902421

Stocked & Ready
Mibro Mibro 7/8 in. Silver and Deming Drill Bit
Mibro Mibro 7/8 in. Silver and Deming Drill Bit
$25.99

Spend $49.99 to unlock free delivery!

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Mibro 7/8 in. Silver and Deming Drill Bit

Item # 3902421

Stocked & Ready
Mibro Mibro 7/8 in. Silver and Deming Drill Bit
Mibro Mibro 7/8 in. Silver and Deming Drill Bit

$25.99

Spend $49.99 to unlock free delivery!

Shopping at

Grassland (franklin) TN

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Only $21.99

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MIBRO 7/8 in. High-Speed Steel (HSS) Silver & Deming Drill Bits are designed for creating large-diameter holes in materials that require more cutting capacity than standard drill bits can provide. Ideal for general-purpose drilling in wood, plastics, and most ferrous and nonferrous metals - including mild steel, cast iron, sheet metal, aluminum, copper, and brass - these bits deliver dependable performance for workshop and fabrication projects. Their reduced shank allows larger diameter bits to fit into drill chucks with a 1/2 in. (12.7 mm) capacity, making them a practical solution for drilling oversized holes. The 135° split-point tip helps reduce walking and eliminates the need for a center punch on many applications for faster, more accurate starts. Three flats on the shank provide a secure grip in the drill chuck to help reduce slipping during use. For best results, use these drill bits in a drill press at speeds up to 400 RPM. Not recommended for drilling high-grade or stainless steel.

Looking for more information on tools? Check out our guide on essential woodworking power tools in the product documents section.

  • Designed to drill large-diameter holes beyond the capacity of standard drill bits
  • Suitable for use on wood, plastics, and most ferrous and nonferrous metals, including mild steel, cast iron, aluminum, copper, and brass
  • Reduced shank fits drill chucks with a 1/2 in. (12.7 mm) capacity
  • 135° split-point tip helps reduce walking and eliminates the need for a center punch
  • Three flats on the shank provide a secure grip in the drill chuck to help reduce slipping
  • Best suited for drill press use at speeds up to 400 RPM; not recommended for high-grade or stainless steel

Q&As

1 - 1 of 1 Question

Q: The packaging says the drill bit is guaranteed replacement, do I return to your store or through manufacturer? If through manufacturer, how can I do that I don't see any thing on there website.

5 years ago
1 Answer
  • A: You would need to contact the manufacture for replacement parts. 1-866-941-9006
    5 years ago
    Helpful?

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Reviews

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Overall Rating

2.1
0 out of 4 (0%) reviewers recommend this product

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    1 to 4 of 7 Reviews .
    1 – 4 of 7 Reviews
    Review 1
    a year ago
    Junk Didn’t even drill one hole!
    Reviews 5

    Good quality

    2 years ago
    Just what was needed
    Evington, Va
    Review 1

    Junk bit

    3 years ago
    Terrible drill bit. Rounded edges on tip within minutes on a slow speed drill.

    No, I do not recommend this product.

    Salem, MI
    Review 1

    Garbage after 1

    4 years ago
    I ran the bit through basic carbon steel at 460rpms on a drill press. The first hole seemed to be fine. The second hole drilled about half way down and then started to squeek very badly. I backed out the bit, and under close inspection the sides of the bit had rounded and lost their edge. This is not a quality product.

    No, I do not recommend this product.