McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    15 Products

    Drill Bits

    Cut holes in a variety of metals, from the softest aluminum to the hardest steel.
    High-Speed Steel Jobbers' Length
    Image of Product. Round Shank. Front orientation. Drill Bits. Drill Bits, Jobbers' Length, Spiral Flute, Round Shank.

    Round Shank

    Image of Product. Morse Taper Shank. Front orientation. Drill Bits. Drill Bits, Jobbers' Length, Spiral Flute, Morse Taper Shank.

    Morse Taper Shank

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

    Standard

    Our basic drill bit material is also the most versatile. These jobbers' bits have the balance of rigidity and length needed for most applications.
    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.
    Round Shank—The most common shank type. These fit in the chuck of drill presses and portable drills.
    Morse Taper Shank—Insert directly into the tapered spindle on machines such as drill presses and lathes.
    Standard Point—Good for general purpose drilling. You’ll need to make a pilot hole to center the bit.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    No. of
    Flutes
    Machine
    Taper No.
    Each
    Black Oxide
     
    Inch
    41/64"0.6406"7 1/8"4.22"SpiralRound41/64"Standard2—0000000000000
    41/64"0.6406"9"4.16"SpiralMorse Taper—Standard2Morse 20000000000000
     
    Titanium Nitride (TiN) Coated
     
    Inch
    41/64"0.6406"7 1/8"4.22"SpiralRound41/64"Standard2—000000000000
     
    Uncoated
     
    Inch
    41/64"0.6406"7 1/8"4.22"SpiralRound41/64"Standard2—000000000000
     
    High-Speed Steel Short Length
    Image of Product. Round Shank. Front orientation. Drill Bits. Drill Bits, Short Length, Spiral Flute, Round Shank.

    Round Shank

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

    Standard

    Our shortest high-speed steel bits, these are the most rigid for drilling the straightest holes. They're also good for tight spaces where longer bits can't fit. Also known as screw-machine and stub-length bits.
    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.
    Round Shank—The most common shank type. These fit in the chuck of drill presses and portable drills.
    Standard Point—Good for general purpose drilling. You’ll need to make a pilot hole to center the bit.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    No. of
    Flutes
    Specs. Met
    Each
    Uncoated
     
    Inch
    41/64"0.6406"4 1/2"1.91"SpiralRound41/64"Standard2ASME B94.11M00000000000000
     
    High-Speed Steel Extended Length
    Image of Product. Front orientation. Drill Bits. Drill Bits, Extended Length, Spiral Flute, Round Shank.

    Spiral Flute

    Round Shank

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

    Standard

    Drill through walls and thick workpieces with our longest high-speed steel 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.
    Round Shank—The most common shank type. These fit in the chuck of drill presses and portable drills.
    Standard Point—Good for general purpose drilling. You’ll need to make a pilot hole to center the bit.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    No. of
    Flutes
    Each
    Black Oxide
     
    Inch
    41/64"0.6406"9"4.16"SpiralRound41/64"Standard2000000000000000
     
    Cobalt Steel Jobbers' Length
    Image of Product. Round Shank. Front orientation. Drill Bits. Drill Bits, Jobbers' Length, Spiral Flute, Round Shank.
    Image of Product. Morse Taper Shank. Front orientation. Drill Bits. Drill Bits, Jobbers' Length, Spiral Flute, Morse Taper Shank.
    Image of Specification. Split. Front orientation. Contains Border. Split Point. For Metal.

    Round Shank

    Morse Taper Shank

    Split

    The toughness and wear resistance of cobalt steel in a length that's rigid enough for most applications. Cobalt lasts at least twice as long as high-speed steel. It can also run up to 25% faster at higher temperatures without damaging the bit on hard materials such as nickel.
    Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated 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.
    Round Shank—The most common shank type. These fit in the chuck of drill presses and portable drills.
    Morse Taper Shank—Insert directly into the tapered spindle on machines such as drill presses and lathes.
    Split Point—Starts cutting on contact so you don’t need a pilot hole. The point also keeps the bit centered for straight and accurate holes, even with a portable drill.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    No. of
    Flutes
    Specs. Met
    Machine
    Taper No.
    Each
    Titanium Nitride (TiN) Coated
     
    Inch
    41/64"0.6406"7 1/8"5.19"SpiralRound41/64"Split2NAS907 Type J—000000000000000
     
    Titanium Aluminum Nitride (TiAlN) Coated
     
    Inch
    41/64"0.641"7 1/8"5.19"SpiralRound41/64"Split2NAS907 Type J—000000000000000
     
    Uncoated
     
    Inch
    41/64"0.6406"7 1/8"4.2"SpiralRound41/64"Split2NAS907 Type J—000000000000
    41/64"0.6406"9"3.84"SpiralMorse Taper—Split2—Morse 20000000000000
     

    Reduced-Shank Drill Bits

    Cut large holes with drill presses and portable drills that have a standard-size chuck. The shank on these bits has a smaller diameter than the cutting tip. Also known as Silver and Deming bits.
    High-Speed Steel Jobbers' Length
    Image of Product. Front orientation. Drill Bits. Reduced-Shank Drill Bits, Jobbers' Length, Spiral Flute.

    Spiral Flute

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

    Standard

    Split

    Our basic drill bit material is also the most versatile. These jobbers' bits have the balance of rigidity and length needed for most applications.
    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.
    3-Flat Shank—Three flat sides on the shank prevent the bit from slipping in the chuck of a drill press or portable drill.
    Standard Point—Good for general purpose drilling. You’ll need to make a pilot hole to center the bit.
    Split Point—Starts cutting on contact so you don’t need a pilot hole. The point also keeps the bit centered for straight and accurate holes, even with a portable drill.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    No. of
    Flutes
    Each
    Black Oxide
     
    Inch
    41/64"0.6406"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    41/64"0.6406"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
     
    High-Speed Steel Extended Length
    Image of Product. Front orientation. Drill Bits. Reduced-Shank Drill Bits, Extended Length, Spiral Flute.

    Spiral Flute

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

    Standard

    Drill through walls and thick workpieces with our longest high-speed steel 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.
    Standard Point—Good for general purpose drilling. You’ll need to make a pilot hole to center the bit.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    No. of
    Flutes
    Each
    Black Oxide
     
    Inch
    41/64"0.6406"12"9"SpiralReduced Round1/2"Standard20000000000000
    41/64"0.6406"18"12"SpiralReduced Round1/2"Standard20000000000000
     
    Cobalt Steel Jobbers' Length
    Image of Product. Front orientation. Drill Bits. Reduced-Shank Drill Bits, Jobbers' Length, Spiral Flute.

    Spiral Flute

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

    Split

    The toughness and wear resistance of cobalt steel in a length that's rigid enough for most applications. Cobalt lasts at least twice as long as high-speed steel. It can also run up to 25% faster at higher temperatures without damaging the bit on hard materials such as nickel.
    Uncoated—Polished to eject chips, these are also known as bright finish bits.
    Split Point—Starts cutting on contact so you don’t need a pilot hole. The point also keeps the bit centered for straight and accurate holes, even with a portable drill.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    No. of
    Flutes
    Each
    Uncoated
     
    Inch
    41/64"0.6406"6"2.1"SpiralReduced Round1/2"Split20000000000000
     
    back to top