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    8 Products
    About Drill Bits
    industrial info icon

    Compare material, finish, length class, and decimal size equivalents.

    High-Speed Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Jobbers' Length, Round Shank.

    Jobbers' Length

    Round Shank

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Short Length, Round Shank.

    Short Length

    Round Shank

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Extended Length, Round Shank.

    Extended Length

    Round Shank

    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    Standard

    Our basic drill bits are also the most versatile. Cut holes in a variety of metals, from the softest aluminum to the hardest steel.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Short Length—The most rigid bits for drilling the straightest holes.
    Extended Length—Drill through panels and thick workpieces with our longest bits. Their length is good for creating deep holes but makes them less rigid than other bits. As a result, they are more prone to wobbling or breaking, especially when drilling hard materials.
    Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these bits can last 50% longer than uncoated bits.
    Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.
    Uncoated—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Each
    Jobbers' Length
     
    Black Oxide
    41/64"
    0.6406"
    7 1/8"4.22"Round
    41/64"Standard
    2931A53000000
     
    Titanium Nitride (TiN) Coated
    41/64"
    0.6406"
    7 1/8"4.22"Round
    41/64"Standard
    3022A7200000
     
    Uncoated
    41/64"
    0.6406"
    7 1/8"4.22"Round
    41/64"Standard
    8870A5500000
     
    Short Length
     
    Uncoated
    41/64"
    0.6406"
    4 1/2"1.91"Round
    41/64"Standard
    8947A24900000
     
    Extended Length
     
    Black Oxide
    41/64"
    0.6406"
    9"4.16"Round
    41/64"Standard
    29315A17400000
     

    Cobalt Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. Cobalt Steel Drill Bits, Jobbers' Length, Round Shank.

    Jobbers' Length

    Round Shank

    Image of Specification. Split. Front orientation. Contains Border. Split Point. For Metal.

    Split

    Tough and wear resistant, cobalt steel bits last at least twice as long as high-speed steel. They can also run up to 25% faster at higher temperatures without being damaged on hard materials, such as nickel.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.
    Titanium Aluminum Nitride (TiAlN) Coated—The hardest and most wear-resistant coating, especially at high temperatures. These bits are best for hard and abrasive materials, such as iron, titanium, and fiberglass.
    Uncoated—Polished to eject chips, these are also known as bright finish bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Each
    Jobbers' Length
     
    Titanium Nitride (TiN) Coated
    41/64"
    0.6406"
    7 1/8"5.19"Round
    41/64"Split
    27995A552000000
     
    Titanium Aluminum Nitride (TiAlN) Coated
    41/64"
    0.641"
    7 1/8"5.19"Round
    41/64"Split
    27995A816000000
     
    Uncoated
    41/64"
    0.6406"
    7 1/8"4.2"Round
    41/64"Split
    3069A8900000
     
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