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    363 Products

    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.
    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.
    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
    17/64"0.2656"3 1/2"1.88"SpiralReduced Round1/4"Standard2000000000000
    9/32"0.2813"3 5/8"1.97"SpiralReduced Round1/4"Standard200000000000
    5/16"0.3125"3 7/8"2.19"SpiralReduced Round1/4"Standard200000000000
    3/8"0.375"4 1/4"2.56"SpiralReduced Round1/4"Standard200000000000
    25/64"0.3906"4 3/8"2.63"SpiralReduced Round1/4"Standard2000000000000
    25/64"0.3906"5 1/8"3.75"SpiralReduced Round3/8"Split2000000000000
    13/32"0.4063"4 1/2"2.75"SpiralReduced Round1/4"Standard200000000000
    13/32"0.4063"5 1/4"3.88"SpiralReduced Round3/8"Split2000000000000
    27/64"0.4219"4 5/8"2.84"SpiralReduced Round1/4"Standard2000000000000
    27/64"0.4219"5 3/8"3.94"SpiralReduced Round3/8"Split2000000000000
    7/16"0.4375"4 3/4"2.94"SpiralReduced Round1/4"Standard2000000000000
    7/16"0.4375"5 1/2"4.06"SpiralReduced Round3/8"Split2000000000000
    29/64"0.4531"4 3/4"3.03"SpiralReduced Round1/4"Standard2000000000000
    29/64"0.4531"5 5/8"4.19"SpiralReduced Round3/8"Split2000000000000
    15/32"0.4688"4 7/8"3.13"SpiralReduced Round1/4"Standard2000000000000
    15/32"0.4688"5 3/4"4.31"SpiralReduced Round3/8"Split2000000000000
    31/64"0.4844"5"3.22"SpiralReduced Round1/4"Standard2000000000000
    31/64"0.4844"5 7/8"4.38"SpiralReduced Round3/8"Split2000000000000
    1/2"0.5"5"3.22"SpiralReduced Round1/4"Standard2000000000000
    1/2"0.5"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    1/2"0.5"6"4.5"SpiralReduced Round3/8"Split2000000000000
    33/64"0.5156"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    33/64"0.5156"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    17/32"0.5313"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    17/32"0.5313"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    35/64"0.5469"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    35/64"0.5469"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    9/16"0.5625"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    9/16"0.5625"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    37/64"0.5781"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    37/64"0.5781"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    19/32"0.5938"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    19/32"0.5938"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    39/64"0.6094"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    39/64"0.6094"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    5/8"0.625"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    5/8"0.625"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    41/64"0.6406"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    41/64"0.6406"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    21/32"0.6563"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    21/32"0.6563"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    43/64"0.6719"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    43/64"0.6719"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    11/16"0.6875"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    11/16"0.6875"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    45/64"0.7031"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    45/64"0.7031"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    23/32"0.7188"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    23/32"0.7188"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    47/64"0.7344"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    47/64"0.7344"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    3/4"0.75"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    3/4"0.75"6"2.1"SpiralReduced Round/3-Flat1/2"Split2000000000000
    49/64"0.7656"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    49/64"0.7656"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    25/32"0.7813"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    25/32"0.7813"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    51/64"0.7969"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    51/64"0.7969"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    13/16"0.8125"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    13/16"0.8125"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    53/64"0.8281"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    53/64"0.8281"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    27/32"0.8438"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    27/32"0.8438"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    55/64"0.8594"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    55/64"0.8594"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    7/8"0.875"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    7/8"0.875"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    57/64"0.8906"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    57/64"0.8906"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    29/32"0.9063"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    29/32"0.9063"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    59/64"0.9219"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    59/64"0.9219"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    15/16"0.9375"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    15/16"0.9375"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    61/64"0.9531"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    61/64"0.9531"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    31/32"0.9688"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    31/32"0.9688"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    63/64"0.9844"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    63/64"0.9844"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    1"1"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    1"1"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    1"1"6"2.1"SpiralReduced Round3/4"Standard2000000000000
    1 1/64"1.0156"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    1 1/64"1.0156"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 1/32"1.0313"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    1 1/32"1.0313"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    1 1/32"1.0313"6"2.1"SpiralReduced Round3/4"Standard2000000000000
    1 3/64"1.0469"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    1 3/64"1.0469"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 1/16"1.0625"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    1 1/16"1.0625"6"2.1"SpiralReduced Round/3-Flat1/2"Standard20000000000000
    1 1/16"1.0625"6"2.1"SpiralReduced Round3/4"Standard2000000000000
    1 5/64"1.0781"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    1 5/64"1.0781"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 3/32"1.0938"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    1 3/32"1.0938"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 3/32"1.0938"6"2.1"SpiralReduced Round3/4"Standard2000000000000
    1 7/64"1.1094"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    1 7/64"1.1094"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 1/8"1.125"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    1 1/8"1.125"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 1/8"1.125"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 9/64"1.1406"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    1 9/64"1.1406"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 5/32"1.1563"6"2.1"SpiralReduced Round1/2"Standard2000000000000
    1 5/32"1.1563"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 5/32"1.1563"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 11/64"1.1719"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 11/64"1.1719"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 3/16"1.1875"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 3/16"1.1875"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 3/16"1.1875"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 13/64"1.2031"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 13/64"1.2031"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 7/32"1.2188"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 7/32"1.2188"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 7/32"1.2188"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 15/64"1.2344"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 15/64"1.2344"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 1/4"1.25"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 1/4"1.25"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 1/4"1.25"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 9/32"1.2813"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 9/32"1.2813"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 9/32"1.2813"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 5/16"1.3125"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 5/16"1.3125"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 5/16"1.3125"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 11/32"1.3438"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 11/32"1.3438"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 11/32"1.3438"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 3/8"1.375"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 3/8"1.375"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 3/8"1.375"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 13/32"1.4063"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 13/32"1.4063"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 7/16"1.4375"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 7/16"1.4375"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 7/16"1.4375"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 15/32"1.4688"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 15/32"1.4688"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 15/32"1.4688"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 1/2"1.5"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 1/2"1.5"6"2.1"SpiralReduced Round/3-Flat1/2"Standard200000000000000
    1 1/2"1.5"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 9/16"1.5625"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 5/8"1.625"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 11/16"1.6875"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 3/4"1.75"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 13/16"1.8125"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 7/8"1.875"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    1 15/16"1.9375"6"2.1"SpiralReduced Round3/4"Standard20000000000000
    2"2"6"2.1"SpiralReduced Round3/4"Standard20000000000000
     
    Titanium Nitride (TiN) Coated
     
    Inch
    17/32"0.5313"6"3.13"SpiralReduced Round1/2"Standard2000000000000
    9/16"0.5625"6"3.13"SpiralReduced Round1/2"Standard2000000000000
    5/8"0.625"6"3.13"SpiralReduced Round1/2"Standard2000000000000
    11/16"0.6875"6"3.13"SpiralReduced Round1/2"Standard2000000000000
    3/4"0.75"6"3.13"SpiralReduced Round1/2"Standard2000000000000
    13/16"0.8125"6"3.13"SpiralReduced Round1/2"Standard2000000000000
    7/8"0.875"6"3.13"SpiralReduced Round1/2"Standard2000000000000
    15/16"0.9375"6"3.13"SpiralReduced Round1/2"Standard2000000000000
    1"1"6"3.13"SpiralReduced Round1/2"Standard2000000000000
     
    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

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

    Split

    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.
    Gold Oxide—Like black oxide, this finish adds wear resistance and reduces friction for improved chip flow. Because it’s less prone to flaking off, it offers better rust protection when bits aren't in use.
    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
    17/32"0.5313"12"9"SpiralReduced Round1/2"Standard20000000000000
    17/32"0.5313"18"12"SpiralReduced Round1/2"Standard20000000000000
    9/16"0.5625"12"9"SpiralReduced Round1/2"Standard2000000000000
    9/16"0.5625"18"12"SpiralReduced Round1/2"Standard20000000000000
    37/64"0.5781"12"9"SpiralReduced Round1/2"Standard2000000000000
    37/64"0.5781"18"12"SpiralReduced Round1/2"Standard20000000000000
    19/32"0.5938"12"9"SpiralReduced Round1/2"Standard2000000000000
    19/32"0.5938"18"12"SpiralReduced Round1/2"Standard20000000000000
    39/64"0.6094"12"9"SpiralReduced Round1/2"Standard2000000000000
    39/64"0.6094"18"12"SpiralReduced Round1/2"Standard20000000000000
    5/8"0.625"12"9"SpiralReduced Round1/2"Standard2000000000000
    5/8"0.625"18"12"SpiralReduced Round1/2"Standard20000000000000
    41/64"0.6406"12"9"SpiralReduced Round1/2"Standard2000000000000
    41/64"0.6406"18"12"SpiralReduced Round1/2"Standard20000000000000
    21/32"0.6563"12"9"SpiralReduced Round1/2"Standard2000000000000
    21/32"0.6563"18"12"SpiralReduced Round1/2"Standard20000000000000
    11/16"0.6875"12"9"SpiralReduced Round1/2"Standard2000000000000
    11/16"0.6875"18"12"SpiralReduced Round1/2"Standard20000000000000
    45/64"0.7031"12"9"SpiralReduced Round1/2"Standard2000000000000
    45/64"0.7031"18"12"SpiralReduced Round1/2"Standard20000000000000
    23/32"0.7188"12"9"SpiralReduced Round1/2"Standard2000000000000
    23/32"0.7188"18"12"SpiralReduced Round1/2"Standard20000000000000
    47/64"0.7344"12"9"SpiralReduced Round1/2"Standard2000000000000
    47/64"0.7344"18"12"SpiralReduced Round1/2"Standard20000000000000
    3/4"0.75"12"9"SpiralReduced Round1/2"Standard2000000000000
    3/4"0.75"18"12"SpiralReduced Round1/2"Standard20000000000000
    49/64"0.7656"12"9"SpiralReduced Round1/2"Standard20000000000000
    49/64"0.7656"18"12"SpiralReduced Round1/2"Standard20000000000000
    25/32"0.7813"12"9"SpiralReduced Round1/2"Standard20000000000000
    25/32"0.7813"18"12"SpiralReduced Round1/2"Standard20000000000000
    13/16"0.8125"12"9"SpiralReduced Round1/2"Standard20000000000000
    13/16"0.8125"18"12"SpiralReduced Round1/2"Standard20000000000000
    7/8"0.875"12"9"SpiralReduced Round1/2"Standard20000000000000
    7/8"0.875"18"12"SpiralReduced Round1/2"Standard20000000000000
    59/64"0.9219"12"9"SpiralReduced Round1/2"Standard20000000000000
    59/64"0.9219"18"12"SpiralReduced Round1/2"Standard20000000000000
    15/16"0.9375"12"9"SpiralReduced Round1/2"Standard20000000000000
    15/16"0.9375"18"12"SpiralReduced Round1/2"Standard20000000000000
    1"1"12"9"SpiralReduced Round1/2"Standard20000000000000
    1"1"18"12"SpiralReduced Round1/2"Standard20000000000000
     
    Metric
    14.0 mm0.5512"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    15.0 mm0.5905"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    16.0 mm0.6299"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    17.0 mm0.6693"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    18.0 mm0.7087"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    19.0 mm0.748"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    20.0 mm0.7874"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    21.0 mm0.8268"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    22.0 mm0.8661"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    24.0 mm0.9449"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    26.0 mm1.0236"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    27.0 mm1.063"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    28.0 mm1.1024"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    29.0 mm1.1417"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    30.0 mm1.1811"152 mm53.3 mmSpiralReduced Round1/2"Standard2000000000000
    31.0 mm1.2205"152 mm53.3 mmSpiralReduced Round1/2"Standard20000000000000
     
    Gold Oxide
     
    Metric
    13.0 mm0.5118"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    13.5 mm0.5315"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    14.0 mm0.5512"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    14.5 mm0.5709"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    15.0 mm0.5906"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    15.5 mm0.6102"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    16.0 mm0.6299"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    16.5 mm0.6496"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    17.0 mm0.6693"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    17.5 mm0.689"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    18.0 mm0.7087"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    18.5 mm0.7283"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    19.0 mm0.748"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    19.5 mm0.7677"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    20.0 mm0.7874"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    21.0 mm0.8268"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    22.0 mm0.8661"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    23.0 mm0.9055"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    24.0 mm0.9449"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
    25.0 mm0.9842"152 mm63.5 mmSpiralReduced Round/3-Flat1/2"Split2000000000000
     
    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.
    Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated bits, especially on tough materials like hardened steel and 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
    Titanium Nitride (TiN) Coated
     
    Inch
    17/32"0.5313"6"3.13"SpiralReduced Round1/2"Split20000000000000
    9/16"0.5625"6"3.13"SpiralReduced Round1/2"Split2000000000000
    19/32"0.5938"6"3.13"SpiralReduced Round1/2"Split2000000000000
    5/8"0.625"6"3.13"SpiralReduced Round1/2"Split2000000000000
    21/32"0.6563"6"3.13"SpiralReduced Round1/2"Split2000000000000
    11/16"0.6875"6"3.13"SpiralReduced Round1/2"Split2000000000000
    23/32"0.7188"6"3.13"SpiralReduced Round1/2"Split2000000000000
    3/4"0.75"6"3.13"SpiralReduced Round1/2"Split2000000000000
    25/32"0.7813"6"3.13"SpiralReduced Round1/2"Split20000000000000
    13/16"0.8125"6"3.13"SpiralReduced Round1/2"Split20000000000000
    27/32"0.8438"6"3.13"SpiralReduced Round1/2"Split20000000000000
    7/8"0.875"6"3.13"SpiralReduced Round1/2"Split20000000000000
    29/32"0.9063"6"3.13"SpiralReduced Round1/2"Split20000000000000
    15/16"0.9375"6"3.13"SpiralReduced Round1/2"Split20000000000000
    31/32"0.9688"6"3.13"SpiralReduced Round1/2"Split20000000000000
    1"1"6"3.13"SpiralReduced Round1/2"Split20000000000000
     
    Uncoated
     
    Inch
    33/64"0.5156"6"2.1"SpiralReduced Round1/2"Split2000000000000
    17/32"0.5313"6"2.1"SpiralReduced Round1/2"Split2000000000000
    35/64"0.5469"6"2.1"SpiralReduced Round1/2"Split2000000000000
    9/16"0.5625"6"2.1"SpiralReduced Round1/2"Split2000000000000
    37/64"0.5781"6"2.1"SpiralReduced Round1/2"Split2000000000000
    19/32"0.5938"6"2.1"SpiralReduced Round1/2"Split2000000000000
    39/64"0.6094"6"2.1"SpiralReduced Round1/2"Split2000000000000
    5/8"0.625"6"2.1"SpiralReduced Round1/2"Split2000000000000
    41/64"0.6406"6"2.1"SpiralReduced Round1/2"Split2000000000000
    21/32"0.6563"6"2.1"SpiralReduced Round1/2"Split2000000000000
    43/64"0.6719"6"2.1"SpiralReduced Round1/2"Split2000000000000
    11/16"0.6875"6"2.1"SpiralReduced Round1/2"Split2000000000000
    45/64"0.7031"6"2.1"SpiralReduced Round1/2"Split2000000000000
    23/32"0.7188"6"2.1"SpiralReduced Round1/2"Split2000000000000
    47/64"0.7344"6"2.1"SpiralReduced Round1/2"Split2000000000000
    3/4"0.75"6"2.1"SpiralReduced Round1/2"Split2000000000000
    49/64"0.7656"6"2.1"SpiralReduced Round1/2"Split2000000000000
    25/32"0.7813"6"2.1"SpiralReduced Round1/2"Split2000000000000
    51/64"0.7969"6"2.1"SpiralReduced Round1/2"Split2000000000000
    13/16"0.8125"6"2.1"SpiralReduced Round1/2"Split2000000000000
    53/64"0.8281"6"2.1"SpiralReduced Round1/2"Split2000000000000
    27/32"0.8438"6"2.1"SpiralReduced Round1/2"Split20000000000000
    55/64"0.8594"6"2.1"SpiralReduced Round1/2"Split2000000000000
    7/8"0.875"6"2.1"SpiralReduced Round1/2"Split2000000000000
    57/64"0.8906"6"2.1"SpiralReduced Round1/2"Split20000000000000
    29/32"0.9063"6"2.1"SpiralReduced Round1/2"Split20000000000000
    59/64"0.9219"6"2.1"SpiralReduced Round1/2"Split20000000000000
    15/16"0.9375"6"2.1"SpiralReduced Round1/2"Split20000000000000
    61/64"0.9531"6"2.1"SpiralReduced Round1/2"Split20000000000000
    31/32"0.9688"6"2.1"SpiralReduced Round1/2"Split20000000000000
    63/64"0.9844"6"2.1"SpiralReduced Round1/2"Split20000000000000
    1"1"6"2.1"SpiralReduced Round1/2"Split20000000000000
    1"1"6"3"SpiralReduced Round3/4"Split20000000000000
    1 1/32"1.0313"6"3"SpiralReduced Round3/4"Split20000000000000
    1 1/16"1.0625"6"3"SpiralReduced Round3/4"Split20000000000000
    1 1/8"1.125"6"3"SpiralReduced Round3/4"Split20000000000000
    1 5/32"1.1563"6"3"SpiralReduced Round3/4"Split20000000000000
    1 3/16"1.1875"6"3"SpiralReduced Round3/4"Split20000000000000
    1 1/4"1.25"6"3"SpiralReduced Round3/4"Split20000000000000
    1 5/16"1.3125"6"3"SpiralReduced Round3/4"Split20000000000000
    1 3/8"1.375"6"3"SpiralReduced Round3/4"Split20000000000000
    1 7/16"1.4375"6"3"SpiralReduced Round3/4"Split20000000000000
    1 1/2"1.5"6"3"SpiralReduced Round3/4"Split20000000000000
    1 9/16"1.5625"6"3"SpiralReduced Round3/4"Split20000000000000
    1 3/4"1.75"6"3"SpiralReduced Round3/4"Split20000000000000
    2"2"6"3"SpiralReduced Round3/4"Split20000000000000
     
    Cobalt Steel Extended Length
    Image of Product. Front orientation. Drill Bits. Reduced-Shank Drill Bits, Extended Length, Spiral Flute.

    Spiral Flute

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

    Split

    Drill through walls and thick workpieces and make deep holes with the longest bits made of tough and wear-resistant cobalt. They last at least twice as long as high-speed steel and can run up to 25% faster and at higher temperatures without damaging the bit or material. The length makes them less rigid than other bits, however, so they are more prone to wobbling or breaking, especially when drilling hard materials.
    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, mm
    Decimal Size
    Equiv.
    Overall
    Lg., mm
    Max. Drilling
    Dp., mm
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    No. of
    Flutes
    Each
    Uncoated
     
    Metric
    13.00.5118"15258SpiralReduced Round1/2"Split200000000000000
    13.50.5315"15258SpiralReduced Round1/2"Split20000000000000
    14.00.5512"15258SpiralReduced Round1/2"Split20000000000000
    14.50.5709"15258SpiralReduced Round1/2"Split20000000000000
    15.00.5906"15258SpiralReduced Round1/2"Split20000000000000
    15.50.6102"15258SpiralReduced Round1/2"Split20000000000000
    16.00.6299"15258SpiralReduced Round1/2"Split20000000000000
    16.50.6496"15258SpiralReduced Round1/2"Split20000000000000
    17.00.6693"15258SpiralReduced Round1/2"Split20000000000000
    17.50.689"15258SpiralReduced Round1/2"Split20000000000000
    18.00.7087"15258SpiralReduced Round1/2"Split20000000000000
    18.50.7283"15258SpiralReduced Round1/2"Split20000000000000
    19.00.748"15258SpiralReduced Round1/2"Split20000000000000
    19.50.7677"15258SpiralReduced Round1/2"Split20000000000000
    20.00.7874"15258SpiralReduced Round1/2"Split20000000000000
    21.00.8268"15258SpiralReduced Round1/2"Split200000000000000
    21.50.8465"15258SpiralReduced Round1/2"Split200000000000000
    23.00.9055"15258SpiralReduced Round1/2"Split200000000000000
    24.00.9449"15258SpiralReduced Round1/2"Split200000000000000
    25.00.9843"15258SpiralReduced Round1/2"Split200000000000000
     
    Carbide-Tipped 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.

    Standard

    The performance of solid carbide but at a lower price point. These jobbers' bits have the balance of rigidity and length needed for most applications. Like carbide bits, they are stronger than cobalt and high-speed steel and maintain their sharp edges when drilling abrasive material. However, when drilling tough metals like iron and hardened steel, upgrade to carbide for longer life.
    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
    Uncoated Carbide Tipped
     
    Inch
    1/2"0.5"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    17/32"0.5313"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    9/16"0.5625"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    19/32"0.5938"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    5/8"0.625"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    21/32"0.6563"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    11/16"0.6875"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    23/32"0.7188"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    3/4"0.75"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    25/32"0.7813"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    13/16"0.8125"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    27/32"0.8438"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    7/8"0.875"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    29/32"0.9063"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    15/16"0.9375"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1"1"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 1/32"1.0313"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 1/16"1.0625"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 1/8"1.125"6"2.1"SpiralReduced Round1/2"Standard20000000000000
    1 1/4"1.25"6"2.1"SpiralReduced Round1/2"Standard20000000000000
     

    Reduced-Shank Hole-Enlarging Drill Bits

    A simple way to enlarge an existing drilled hole, these bits are an economical alternative to reamers. They have four flutes that won’t catch on the inside of the hole like standard two-flute bits can, avoiding damage to the hole and your tool. The shank has a smaller diameter than the cutting tip, so you can ream large holes using tools that have standard-size chucks.
    Tool Steel
    Image of Product. Front orientation. Contains Annotated. Drill Bits. Reduced-Shank Hole-Enlarging Drill Bits, Spiral Flute.

    Spiral Flute

    Shank
    Drill Bit
    Size
    Overall
    Lg.
    Max. Drilling
    Dp.
    Flute
    Type
    Type
    Dia.
    No. of
    Flutes
    Flute
    Lg.
    Each
    Black Oxide
     
    Inch
    3/8"4.31"1.75"SpiralReduced Round3/8"41.875"00000000000000
    1/2"4.31"1.75"SpiralReduced Round1/2"41.875"0000000000000
    9/16"4.31"1.75"SpiralReduced Round1/2"41.875"0000000000000
    5/8"4.31"1.75"SpiralReduced Round1/2"41.875"0000000000000
    11/16"4.31"1.75"SpiralReduced Round1/2"41.875"0000000000000
    3/4"4.31"1.75"SpiralReduced Round1/2"41.875"0000000000000
     

    Reduced-Shank Drill Bit Sets

    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 Bit Sets, Jobbers' Length, Spiral Flute.

    Spiral Flute

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

    Split

    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.
    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.
    Standard Point—Good for general purpose drilling. You’ll need to make a pilot hole to center the bit.
    Shank
    Size
    No. of
    Pieces
    Drill Bit Sizes Included
    Drill Bit Point
    Style
    Flute
    Type
    Container
    Type
    Each
    Black Oxide
     
    Inch
    1/2"89/16"-1" (increments of 1/16")Split PointSpiralMetal Case000000000000000
    1/2"89/16"-1" (increments of 1/16")Standard PointSpiralMetal Case0000000000000
    1/2"1617/32"-1" (increments of 1/32")Split PointSpiralWood Stand00000000000000
    1/2"1617/32"-1" (increments of 1/32")Standard PointSpiralWood Stand0000000000000
    1/2"331/2"-1" (increments of 1/64")Split PointSpiralMetal Stand0000000000000000
    1/2"331/2"-1" (increments of 1/64")Standard PointSpiralMetal Stand000000000000000
     
    Titanium Nitride (TiN) Coated
     
    Inch
    1/2"89/16"-1" (increments of 1/16")Standard PointSpiralMetal Stand0000000000000
     
    Uncoated
     
    Inch
    1/4"151/16"-1/4" (increments of 1/32")
    9/32"-1/2" (increments of 1/32") Black-Oxide Flutes
    Standard PointSpiralMetal Case000000000000
    1/4"291/16"-1/4" (increments of 1/64")
    17/64"-1/2" (increments of 1/64") Black-Oxide Flutes
    Standard PointSpiralMetal Case0000000000000
    3/8"151/16"-1/2" (increments of 1/32")Standard PointSpiralMetal Case000000000000
    3/8"291/16"-1/2" (increments of 1/64")Standard PointSpiralMetal Case0000000000000
     
    Cobalt Steel Jobbers' Length
    Image of Product. Front orientation. Drill Bits. Reduced-Shank Drill Bit Sets, 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
    Size
    No. of
    Pieces
    Drill Bit Sizes Included
    Drill Bit Point
    Style
    Flute
    Type
    Container
    Type
    Each
    Uncoated
     
    Inch
    1/2"89/16"-1" (increments of 1/16")Split PointSpiralMetal Case00000000000000
     

    Reduced-Shank Hole-Enlarging Drill Bit Sets

    An economical alternative to reamers, these sets include four bit sizes for enlarging existing drilled holes. Bits have four flutes that won’t catch on the inside of the hole like standard two-flute bits can, avoiding damage to the hole and your tool. The shank has a smaller diameter than the cutting tip, so you can ream large holes using tools that have small-capacity chucks. Sets also contain four hole-starting bits.
    Tool Steel
    Image of Product. Front orientation. Drill Bits. Reduced-Shank Hole-Enlarging Drill Bit Sets, Spiral Flute.

    Spiral Flute

    No. of
    Pieces
    Drill Bit Sizes Included
    Flute
    Type
    Container
    Type
    Each
    Black Oxide
     
    Inch
    81/4", 5/16", 25/64", and 15/32" Hole-Starting Bits,
    3/8", 1/2", 5/8", and 3/4" Hole-Enlarging Bits
    SpiralMetal Case000000000000000
     
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