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    299 Products
    About Drill Bits
    industrial info icon

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

    Cobalt Steel Drill Bits

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

    Short Length

    Round Shank

    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

    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.
    Short Length—The most rigid bits for drilling the straightest holes.
    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—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
    Pkg.
    Qty.
    Pkg.
    Short Length
     
    Titanium Nitride (TiN) Coated
    1/16"
    0.0625"
    1 5/8"0.53"Round
    1/16"Split
    1000000000000
    5/64"
    0.0781"
    1 11/16"0.57"Round
    5/64"Split
    100000000000
    3/32"
    0.0938"
    1 3/4"0.6"Round
    3/32"Split
    100000000000
    7/64"
    0.1094"
    1 13/16"0.64"Round
    7/64"Split
    100000000000
    1/8"
    0.125"
    1 7/8"0.68"Round
    1/8"Split
    100000000000
    9/64"
    0.1406"
    1 15/16"0.72"Round
    9/64"Split
    100000000000
    5/32"
    0.1563"
    2 1/16"0.76"Round
    5/32"Split
    100000000000
    11/64"
    0.1719"
    2 1/8"0.8"Round
    11/64"Split
    100000000000
    3/16"
    0.1875"
    2 3/16"0.84"Round
    3/16"Split
    100000000000
    13/64"
    0.2031"
    2 1/4"0.88"Round
    13/64"Split
    1000000000000
    7/32"
    0.2188"
    2 3/8"0.92"Round
    7/32"Split
    1000000000000
    15/64"
    0.2344"
    2 7/16"0.96"Round
    15/64"Split
    1000000000000
    1/4"
    0.25"
    2 1/2"1"Round
    1/4"Split
    1000000000000
    17/64"
    0.2656"
    2 5/8"1.03"Round
    17/64"Split
    1000000000000
    9/32"
    0.2813"
    2 11/16"1.07"Round
    9/32"Split
    1000000000000
    19/64"
    0.2969"
    2 3/4"1.11"Round
    19/64"Split
    1000000000000
    5/16"
    0.3125"
    2 13/16"1.15"Round
    5/16"Split
    1000000000000
    21/64"
    0.3281"
    2 15/16"1.19"Round
    21/64"Split
    1000000000000
    11/32"
    0.3438"
    3"1.17"Round
    11/32"Split
    1000000000000
    23/64"
    0.3594"
    3 1/16"1.21"Round
    23/64"Split
    1000000000000
    3/8"
    0.375"
    3 1/8"1.25"Round
    3/8"Split
    1000000000000
    25/64"
    0.3906"
    3 1/4"1.28"Round
    25/64"Split
    1000000000000
    13/32"
    0.4063"
    3 5/16"1.32"Round
    13/32"Split
    1000000000000
    27/64"
    0.4219"
    3 3/8"1.36"Round
    27/64"Split
    1000000000000
    7/16"
    0.4375"
    3 7/16"1.4"Round
    7/16"Split
    1000000000000
    29/64"
    0.4531"
    3 9/16"1.44"Round
    29/64"Split
    1000000000000
    15/32"
    0.4688"
    3 5/8"1.42"Round
    15/32"Split
    1000000000000
    31/64"
    0.4844"
    3 1/16"1.46"Round
    31/64"Split
    1000000000000
    1/2"
    0.5"
    3 3/4"1.5"Round
    1/2"Split
    1000000000000
    1.0 mm
    0.0394"
    25 mm4.1 mmRound
    1 mmSplit
    1000000000000
    1.5 mm
    0.0591"
    33 mm6.1 mmRound
    1.5 mmSplit
    1000000000000
    1.6 mm
    0.063"
    33 mm6.9 mmRound
    1.6 mmSplit
    1000000000000
    2.0 mm
    0.0787"
    38 mm8.1 mmRound
    2 mmSplit
    1000000000000
    2.05 mm
    0.0807"
    38 mm7.9 mmRound
    2.05 mmSplit
    1000000000000
    2.5 mm
    0.0984"
    43 mm9.1 mmRound
    2.5 mmSplit
    1000000000000
    2.6 mm
    0.1024"
    43 mm8.9 mmRound
    2.6 mmSplit
    1000000000000
    3.3 mm
    0.1299"
    49 mm11.4 mmRound
    3.3 mmSplit
    1000000000000
    3.5 mm
    0.1378"
    52 mm13 mmRound
    3.5 mmSplit
    1000000000000
    4.0 mm
    0.1575"
    56 mm14 mmRound
    4 mmSplit
    1000000000000
    4.2 mm
    0.1654"
    56 mm13.7 mmRound
    4.2 mmSplit
    1000000000000
    4.5 mm
    0.1772"
    59 mm15 mmRound
    4.5 mmSplit
    1000000000000
    5.0 mm
    0.1969"
    62 mm16 mmRound
    5 mmSplit
    1000000000000
    5.5 mm
    0.2165"
    67 mm17 mmRound
    5.5 mmSplit
    1000000000000
    6.0 mm
    0.2362"
    67 mm16 mmRound
    6 mmSplit
    1000000000000
    6.4 mm
    0.252"
    70 mm18.3 mmRound
    6.4 mmSplit
    10000000000000
    6.7 mm
    0.2638"
    70 mm17.5 mmRound
    6.7 mmSplit
    10000000000000
    7.0 mm
    0.2756"
    75 mm20.1 mmRound
    7 mmSplit
    10000000000000
    8.0 mm
    0.315"
    79 mm21.1 mmRound
    8 mmSplit
    10000000000000
    8.5 mm
    0.3346"
    79 mm20.1 mmRound
    8.5 mmSplit
    10000000000000
    9.0 mm
    0.3543"
    84 mm22.1 mmRound
    9 mmSplit
    10000000000000
    60 Ga.
    0.04"
    1 3/8"0.16"Round
    0.04"Standard
    10000000000000
    59 Ga.
    0.041"
    1 3/8"0.16"Round
    0.041"Standard
    10000000000000
    58 Ga.
    0.042"
    1 3/8"0.16"Round
    0.042"Standard
    10000000000000
    57 Ga.
    0.043"
    1 3/8"0.17"Round
    0.043"Standard
    10000000000000
    56 Ga.
    0.0465"
    1 3/8"0.18"Round
    0.0465"Standard
    10000000000000
    55 Ga.
    0.052"
    1 5/8"0.2"Round
    0.052"Standard
    10000000000000
    54 Ga.
    0.055"
    1 5/8"0.22"Round
    0.055"Standard
    10000000000000
    53 Ga.
    0.0595"
    1 5/8"0.23"Round
    0.0595"Standard
    10000000000000
    52 Ga.
    0.0635"
    1 11/16"0.25"Round
    0.0635"Split
    10000000000000
    51 Ga.
    0.067"
    1 11/16"0.26"Round
    0.067"Split
    10000000000000
    50 Ga.
    0.07"
    1 11/16"0.28"Round
    0.07"Split
    10000000000000
    49 Ga.
    0.073"
    1 11/16"0.29"Round
    0.073"Split
    10000000000000
    48 Ga.
    0.076"
    1 11/16"0.3"Round
    0.076"Split
    10000000000000
    47 Ga.
    0.0785"
    1 11/16"0.31"Round
    0.0785"Split
    10000000000000
    46 Ga.
    0.081"
    1 3/4"0.32"Round
    0.081"Split
    10000000000000
    45 Ga.
    0.082"
    1 3/4"0.32"Round
    0.082"Split
    10000000000000
    44 Ga.
    0.086"
    1 3/4"0.34"Round
    0.086"Split
    10000000000000
    43 Ga.
    0.089"
    1 3/4"0.35"Round
    0.089"Split
    10000000000000
    42 Ga.
    0.0935"
    1 3/4"0.37"Round
    0.0935"Split
    10000000000000
    41 Ga.
    0.096"
    1 13/16"0.38"Round
    0.096"Split
    10000000000000
    40 Ga.
    0.098"
    1 13/16"0.39"Round
    0.098"Split
    10000000000000
    39 Ga.
    0.0995"
    1 13/16"0.39"Round
    0.0995"Split
    10000000000000
    38 Ga.
    0.1015"
    1 13/16"0.4"Round
    0.1015"Split
    10000000000000
    37 Ga.
    0.104"
    1 13/16"0.41"Round
    0.104"Split
    10000000000000
    36 Ga.
    0.1065"
    1 13/16"0.42"Round
    0.1065"Split
    10000000000000
    35 Ga.
    0.11"
    1 7/8"0.44"Round
    0.11"Split
    10000000000000
    34 Ga.
    0.111"
    1 7/8"0.44"Round
    0.111"Split
    10000000000000
    33 Ga.
    0.113"
    1 7/8"0.45"Round
    0.113"Split
    10000000000000
    32 Ga.
    0.116"
    1 7/8"0.46"Round
    0.116"Split
    10000000000000
    31 Ga.
    0.12"
    1 7/8"0.48"Round
    0.12"Split
    10000000000000
    30 Ga.
    0.1285"
    1 15/16"0.51"Round
    0.1285"Split
    10000000000000
    29 Ga.
    0.136"
    1 15/16"0.54"Round
    0.136"Split
    10000000000000
    28 Ga.
    0.1405"
    1 15/16"0.56"Round
    0.1405"Split
    10000000000000
    27 Ga.
    0.144"
    2 1/16"0.57"Round
    0.144"Split
    10000000000000
    26 Ga.
    0.147"
    2 1/16"0.58"Round
    0.147"Split
    10000000000000
    25 Ga.
    0.1495"
    2 1/16"0.59"Round
    0.1495"Split
    10000000000000
    24 Ga.
    0.152"
    2 1/16"0.6"Round
    0.152"Split
    10000000000000
    23 Ga.
    0.154"
    2 1/16"0.61"Round
    0.154"Split
    10000000000000
    22 Ga.
    0.157"
    2 1/8"0.62"Round
    0.157"Split
    10000000000000
    21 Ga.
    0.159"
    2 1/8"0.63"Round
    0.159"Split
    10000000000000
    20 Ga.
    0.161"
    2 1/8"0.64"Round
    0.161"Split
    10000000000000
    19 Ga.
    0.166"
    2 1/8"0.66"Round
    0.166"Split
    10000000000000
    18 Ga.
    0.1695"
    2 1/8"0.67"Round
    0.1695"Split
    10000000000000
    17 Ga.
    0.173"
    2 3/16"0.69"Round
    0.173"Split
    10000000000000
    16 Ga.
    0.177"
    2 3/16"0.7"Round
    0.177"Split
    10000000000000
    15 Ga.
    0.18"
    2 3/16"0.72"Round
    0.18"Split
    10000000000000
    14 Ga.
    0.182"
    2 3/16"0.72"Round
    0.182"Split
    10000000000000
    13 Ga.
    0.185"
    2 3/16"0.74"Round
    0.185"Split
    10000000000000
    12 Ga.
    0.189"
    2 1/4"0.75"Round
    0.189"Split
    10000000000000
    11 Ga.
    0.191"
    2 1/4"0.76"Round
    0.191"Split
    10000000000000
    10 Ga.
    0.1935"
    2 1/4"0.77"Round
    0.1935"Split
    10000000000000
    9 Ga.
    0.196"
    2 1/4"0.78"Round
    0.196"Split
    10000000000000
    8 Ga.
    0.199"
    2 1/4"0.79"Round
    0.199"Split
    10000000000000
    7 Ga.
    0.201"
    2 1/4"0.8"Round
    0.201"Split
    10000000000000
    6 Ga.
    0.204"
    2 3/8"0.81"Round
    0.204"Split
    10000000000000
    5 Ga.
    0.2055"
    2 3/8"0.82"Round
    0.2055"Split
    10000000000000
    4 Ga.
    0.209"
    2 3/8"0.83"Round
    0.209"Split
    10000000000000
    3 Ga.
    0.213"
    2 3/8"0.85"Round
    0.213"Split
    10000000000000
    2 Ga.
    0.221"
    2 7/16"0.88"Round
    0.221"Split
    10000000000000
    1 Ga.
    0.228"
    2 7/16"0.91"Round
    0.228"Split
    10000000000000
     
    Uncoated
    1/16"
    0.0625"
    1 5/8"0.53"Round
    1/16"Split
    1000000000000
    1/16"
    0.0625"
    1 5/8"0.53"Round
    1/16"Split
    1200000000000000
    5/64"
    0.0781"
    1 3/4"0.57"Round
    5/64"Split
    1000000000000
    5/64"
    0.0781"
    1 3/4"0.57"Round
    5/64"Split
    1200000000000000
    3/32"
    0.0938"
    1 3/4"0.6"Round
    3/32"Split
    1000000000000
    3/32"
    0.0938"
    1 3/4"0.6"Round
    3/32"Split
    1200000000000000
    7/64"
    0.1094"
    1 7/8"0.64"Round
    7/64"Split
    1000000000000
    7/64"
    0.1094"
    1 7/8"0.64"Round
    7/64"Split
    1200000000000000
    1/8"
    0.125"
    1 7/8"0.68"Round
    1/8"Split
    1000000000000
    1/8"
    0.125"
    1 7/8"0.68"Round
    1/8"Split
    1200000000000000
    9/64"
    0.1406"
    2"0.72"Round
    9/64"Split
    1000000000000
    9/64"
    0.1406"
    2"0.72"Round
    9/64"Split
    1200000000000000
    5/32"
    0.1563"
    2 1/8"0.76"Round
    5/32"Split
    1000000000000
    5/32"
    0.1563"
    2 1/8"0.76"Round
    5/32"Split
    1200000000000000
    11/64"
    0.1719"
    2 1/8"0.8"Round
    11/64"Split
    1000000000000
    11/64"
    0.1719"
    2 1/8"0.8"Round
    11/64"Split
    1200000000000000
    3/16"
    0.1875"
    2 1/4"0.84"Round
    3/16"Split
    1000000000000
    3/16"
    0.1875"
    2 1/4"0.84"Round
    3/16"Split
    1200000000000000
    13/64"
    0.2031"
    2 1/4"0.88"Round
    13/64"Split
    1000000000000
    13/64"
    0.2031"
    2 1/4"0.88"Round
    13/64"Split
    1200000000000000
    7/32"
    0.2188"
    2 3/8"0.92"Round
    7/32"Split
    1000000000000
    7/32"
    0.2188"
    2 3/8"0.92"Round
    7/32"Split
    1200000000000000
    15/64"
    0.2344"
    2 1/2"0.96"Round
    15/64"Split
    1000000000000
    1/4"
    0.25"
    2 1/2"1"Round
    1/4"Split
    1000000000000
    1/4"
    0.25"
    2 1/2"1"Round
    1/4"Split
    1200000000000000
    17/64"
    0.2656"
    2 5/8"1.03"Round
    17/64"Split
    1000000000000
    17/64"
    0.2656"
    2 5/8"1.03"Round
    17/64"Split
    1200000000000000
    9/32"
    0.2813"
    2 3/4"1.07"Round
    9/32"Split
    1000000000000
    19/64"
    0.2969"
    2 3/4"1.11"Round
    19/64"Split
    10000000000000
    5/16"
    0.3125"
    2 7/8"1.15"Round
    5/16"Split
    10000000000000
    5/16"
    0.3125"
    2 7/8"1.15"Round
    5/16"Split
    600000000000000
    21/64"
    0.3281"
    3"1.19"Round
    21/64"Split
    10000000000000
    21/64"
    0.3281"
    3"1.19"Round
    21/64"Split
    600000000000000
    11/32"
    0.3438"
    3"1.17"Round
    11/32"Split
    10000000000000
    23/64"
    0.3594"
    3 1/8"1.21"Round
    23/64"Split
    10000000000000
    3/8"
    0.375"
    3 1/8"1.25"Round
    3/8"Split
    10000000000000
    3/8"
    0.375"
    3 1/8"1.25"Round
    3/8"Split
    600000000000000
    25/64"
    0.3906"
    3 1/4"1.28"Round
    25/64"Split
    10000000000000
    13/32"
    0.4063"
    3 3/8"1.32"Round
    13/32"Split
    10000000000000
    27/64"
    0.4219"
    3 3/8"1.36"Round
    27/64"Split
    10000000000000
    7/16"
    0.4375"
    3 1/2"1.4"Round
    7/16"Split
    10000000000000
    7/16"
    0.4375"
    3 1/2"1.4"Round
    7/16"Split
    6000000000000000
    29/64"
    0.4531"
    3 5/8"1.44"Round
    29/64"Split
    10000000000000
    15/32"
    0.4688"
    3 5/8"1.42"Round
    15/32"Split
    10000000000000
    31/64"
    0.4844"
    3 3/4"1.46"Round
    31/64"Split
    10000000000000
    1/2"
    0.5"
    3 3/4"1.5"Round
    1/2"Split
    10000000000000
    1/2"
    0.5"
    3 3/4"1.5"Round
    1/2"Split
    6000000000000000
    1.0 mm
    0.0394"
    25 mm4.1 mmRound
    1 mmStandard
    1000000000000
    1.5 mm
    0.0591"
    32 mm6.1 mmRound
    1.5 mmStandard
    1000000000000
    1.6 mm
    0.063"
    33 mm6.9 mmRound
    1.6 mmSplit
    1000000000000
    2.0 mm
    0.0787"
    38 mm8.1 mmRound
    2 mmSplit
    1000000000000
    2.05 mm
    0.0807"
    38 mm7.9 mmRound
    2.05 mmSplit
    1000000000000
    2.5 mm
    0.0984"
    43 mm9.1 mmRound
    2.5 mmSplit
    1000000000000
    2.6 mm
    0.1024"
    43 mm8.9 mmRound
    2.6 mmSplit
    1000000000000
    3.3 mm
    0.1299"
    49 mm11.4 mmRound
    3.3 mmSplit
    1000000000000
    3.5 mm
    0.1378"
    52 mm13 mmRound
    3.5 mmSplit
    1000000000000
    4.0 mm
    0.1575"
    56 mm14 mmRound
    4 mmSplit
    1000000000000
    4.2 mm
    0.1654"
    56 mm13.7 mmRound
    4.2 mmSplit
    1000000000000
    4.5 mm
    0.1772"
    59 mm15 mmRound
    4.5 mmSplit
    1000000000000
    5.0 mm
    0.1969"
    62 mm16 mmRound
    5 mmSplit
    1000000000000
    5.5 mm
    0.2165"
    67 mm17 mmRound
    5.5 mmSplit
    1000000000000
    6.0 mm
    0.2362"
    67 mm16 mmRound
    6 mmSplit
    1000000000000
    6.4 mm
    0.252"
    70 mm18.3 mmRound
    6.4 mmSplit
    1000000000000
    6.7 mm
    0.2638"
    70 mm17.5 mmRound
    6.7 mmSplit
    1000000000000
    7.0 mm
    0.2756"
    75 mm20.1 mmRound
    7 mmSplit
    1000000000000
    8.0 mm
    0.315"
    79 mm21.1 mmRound
    8 mmSplit
    10000000000000
    8.5 mm
    0.3346"
    79 mm20.1 mmRound
    8.5 mmSplit
    10000000000000
    9.0 mm
    0.3543"
    84 mm22.1 mmRound
    9 mmSplit
    10000000000000
    10.0 mm0.3937"
    89 mm23.1 mmRound
    10 mmSplit
    10000000000000
    10.2 mm
    0.4016"
    89 mm22.6 mmRound
    10.2 mmSplit
    10000000000000
    11.0 mm
    0.4331"
    95 mm24.9 mmRound
    11 mmSplit
    10000000000000
    12.0 mm
    0.4724"
    102 mm26.9 mmRound
    12 mmSplit
    10000000000000
    13.0 mm
    0.5118"
    102 mm24.9 mmRound
    13 mmSplit
    10000000000000
    60 Ga.
    0.04"
    1 3/8"0.4"Round
    0.04"Standard
    1000000000000
    59 Ga.
    0.041"
    1 3/8"0.4"Round
    0.041"Standard
    10000000000000
    58 Ga.
    0.042"
    1 3/8"0.4"Round
    0.042"Standard
    10000000000000
    57 Ga.
    0.043"
    1 3/8"0.4"Round
    0.043"Standard
    10000000000000
    56 Ga.
    0.0465"
    1 3/8"0.4"Round
    0.0465"Standard
    10000000000000
    55 Ga.
    0.052"
    1 5/8"0.5"Round
    0.052"Standard
    10000000000000
    54 Ga.
    0.055"
    1 5/8"0.5"Round
    0.055"Standard
    10000000000000
    53 Ga.
    0.0595"
    1 5/8"0.5"Round
    0.0595"Standard
    10000000000000
    52 Ga.
    0.0635"
    1 3/4"0.6"Round
    0.0635"Split
    10000000000000
    51 Ga.
    0.067"
    1 3/4"0.6"Round
    0.067"Split
    10000000000000
    50 Ga.
    0.07"
    1 3/4"0.6"Round
    0.07"Split
    1000000000000
    49 Ga.
    0.073"
    1 3/4"0.6"Round
    0.073"Split
    10000000000000
    48 Ga.
    0.076"
    1 3/4"0.6"Round
    0.076"Split
    10000000000000
    47 Ga.
    0.0785"
    1 3/4"0.6"Round
    0.0785"Split
    10000000000000
    46 Ga.
    0.081"
    1 3/4"0.6"Round
    0.081"Split
    10000000000000
    45 Ga.
    0.082"
    1 3/4"0.6"Round
    0.082"Split
    10000000000000
    44 Ga.
    0.086"
    1 3/4"0.6"Round
    0.086"Split
    10000000000000
    43 Ga.
    0.089"
    1 3/4"0.6"Round
    0.089"Split
    10000000000000
    42 Ga.
    0.0935"
    1 3/4"0.6"Round
    0.0935"Split
    10000000000000
    41 Ga.
    0.096"
    1 7/8"0.7"Round
    0.096"Split
    10000000000000
    40 Ga.
    0.098"
    1 7/8"0.7"Round
    0.098"Split
    1000000000000
    39 Ga.
    0.0995"
    1 7/8"0.7"Round
    0.0995"Split
    10000000000000
    38 Ga.
    0.1015"
    1 7/8"0.7"Round
    0.1015"Split
    10000000000000
    37 Ga.
    0.104"
    1 7/8"0.7"Round
    0.104"Split
    10000000000000
    36 Ga.
    0.1065"
    1 7/8"0.7"Round
    0.1065"Split
    10000000000000
    35 Ga.
    0.11"
    1 7/8"0.7"Round
    0.11"Split
    10000000000000
    34 Ga.
    0.111"
    1 7/8"0.7"Round
    0.111"Split
    10000000000000
    33 Ga.
    0.113"
    1 7/8"0.7"Round
    0.113"Split
    10000000000000
    32 Ga.
    0.116"
    1 7/8"0.7"Round
    0.116"Split
    10000000000000
    31 Ga.
    0.12"
    1 7/8"0.7"Round
    0.12"Split
    1000000000000
    30 Ga.
    0.1285"
    2"0.7"Round
    0.1285"Split
    100000000000
    29 Ga.
    0.136"
    2"0.7"Round
    0.136"Split
    1000000000000
    28 Ga.
    0.1405"
    2"0.7"Round
    0.1405"Split
    1000000000000
    27 Ga.
    0.144"
    2 1/8"0.7"Round
    0.144"Split
    1000000000000
    26 Ga.
    0.147"
    2 1/8"0.7"Round
    0.147"Split
    1000000000000
    25 Ga.
    0.1495"
    2 1/8"0.7"Round
    0.1495"Split
    1000000000000
    24 Ga.
    0.152"
    2 1/8"0.8"Round
    0.152"Split
    1000000000000
    23 Ga.
    0.154"
    2 1/8"0.8"Round
    0.154"Split
    1000000000000
    22 Ga.
    0.157"
    2 1/8"0.8"Round
    0.157"Split
    1000000000000
    21 Ga.
    0.159"
    2 1/8"0.8"Round
    0.159"Split
    1000000000000
    20 Ga.
    0.161"
    2 1/8"0.8"Round
    0.161"Split
    100000000000
    19 Ga.
    0.166"
    2 1/8"0.8"Round
    0.166"Split
    1000000000000
    18 Ga.
    0.1695"
    2 1/8"0.8"Round
    0.1695"Split
    1000000000000
    17 Ga.
    0.173"
    2 1/4"0.9"Round
    0.173"Split
    1000000000000
    16 Ga.
    0.177"
    2 1/4"0.9"Round
    0.177"Split
    1000000000000
    15 Ga.
    0.18"
    2 1/4"0.9"Round
    0.18"Split
    1000000000000
    14 Ga.
    0.182"
    2 1/4"0.9"Round
    0.182"Split
    1000000000000
    13 Ga.
    0.185"
    2 1/4"0.9"Round
    0.185"Split
    1000000000000
    12 Ga.
    0.189"
    2 1/4"0.9"Round
    0.189"Split
    1000000000000
    11 Ga.
    0.191"
    2 1/4"0.9"Round
    0.191"Split
    1000000000000
    10 Ga.
    0.1935"
    2 1/4"0.9"Round
    0.1935"Split
    100000000000
    9 Ga.
    0.196"
    2 1/4"0.9"Round
    0.196"Split
    1000000000000
    8 Ga.
    0.199"
    2 1/4"0.9"Round
    0.199"Split
    1000000000000
    7 Ga.
    0.201"
    2 1/4"0.9"Round
    0.201"Split
    1000000000000
    6 Ga.
    0.204"
    2 3/8"0.9"Round
    0.204"Split
    1000000000000
    5 Ga.
    0.2055"
    2 3/8"0.9"Round
    0.2055"Split
    1000000000000
    4 Ga.
    0.209"
    2 3/8"0.9"Round
    0.209"Split
    1000000000000
    3 Ga.
    0.213"
    2 3/8"0.9"Round
    0.213"Split
    1000000000000
    2 Ga.
    0.221"
    2 1/2"1"Round
    0.221"Split
    1000000000000
    1 Ga.
    0.228"
    2 1/2"1"Round
    0.228"Split
    1000000000000
    A
    0.234"
    2 1/2"0.96"Round
    0.234"Split
    10000000000000
    B
    0.238"
    2 1/2"1.01"Round
    0.238"Split
    10000000000000
    C
    0.242"
    2 1/2"1.01"Round
    0.242"Split
    10000000000000
    D
    0.246"
    2 1/2"1"Round
    0.246"Split
    10000000000000
    E
    0.25"
    2 1/2"1"Round
    1/4"Split
    10000000000000
    F
    0.257"
    2 5/8"1.05"Round
    0.257"Split
    10000000000000
    G
    0.261"
    2 5/8"1.04"Round
    0.261"Split
    10000000000000
    H
    0.266"
    2 3/4"1.01"Round
    0.266"Split
    10000000000000
    I
    0.272"
    2 3/4"1.09"Round
    0.272"Split
    10000000000000
    J
    0.277"
    2 3/4"1.08"Round
    0.277"Split
    1000000000000
    K
    0.281"
    2 3/4"1.07"Round
    0.281"Split
    100000000000000
    L
    0.29"
    2 3/4"1.12"Round
    0.29"Split
    100000000000000
    M
    0.295"
    2 3/4"1.12"Round
    0.295"Split
    100000000000000
    N
    0.302"
    2 7/8"1.17"Round
    0.302"Split
    100000000000000
    O
    0.316"
    3"1.21"Round
    0.316"Split
    100000000000000
    P
    0.323"
    3"1.2"Round
    0.323"Split
    100000000000000
    Q
    0.332"
    3"1.19"Round
    0.332"Split
    100000000000000
    R
    0.339"
    3"1.17"Round
    0.339"Split
    100000000000000
    S
    0.348"
    3 1/8"1.22"Round
    0.348"Split
    100000000000000
    T
    0.358"
    3 1/8"1.21"Round
    0.358"Split
    10000000000000
    U
    0.368"
    3 1/8"1.26"Round
    0.368"Split
    100000000000000
    V
    0.377"
    3 1/4"1.31"Round
    0.377"Split
    100000000000000
    W
    0.386"
    3 1/4"1.29"Round
    0.386"Split
    100000000000000
    X
    0.397"
    3 3/8"1.34"Round
    0.397"Split
    100000000000000
    Y
    0.404"
    3 3/8"1.33"Round
    0.404"Split
    100000000000000
    Z
    0.413"
    3 3/8"1.38"Round
    0.413"Split
    100000000000000
     

    Cobalt Steel Drill Bit Sets

    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.
    Short LengthAbout Short Length
    Image of Product. Front orientation. Drill Bits. Cobalt Steel Drill Bit Sets, Short Length.
    Image of Specification. Split. Front orientation. Contains Border. Split Point. For Metal.

    Split

    The most rigid bits for drilling the straightest holes.
    Uncoated—Polished to eject chips, these are also known as bright finish bits.
    No. of
    Pieces
    Drill Bit Sizes Included
    System of
    Measurement
    Drill Bit Point
    Style
    Container
    Type
    Each
    Uncoated
    151/16"-1/2" (increments of 1/32")InchSplit Point
    Metal Case00000000000000
    26A-ZLetter SizeSplit Point
    Metal Case0000000000000
    291/16"-1/2" (increments of 1/64")InchSplit Point
    Metal Case0000000000000
    6060-53 ga,
    52-1 ga
    Wire GaugeStandard
    Split
    Metal Case0000000000000
     

    Hole-Starting Cobalt Steel Drill Bits

    Image of Product. 120° Point Angle. Front orientation. Drill Bits. Hole-Starting Cobalt Steel Drill Bits, Short Length, Round Shank.

    120° Point Angle

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

    Standard

    Create an accurate starting place in your workpiece. Cut an indent with these bits, then continue drilling with a longer bit. The indent prevents slipping so the final hole is centered and precise. Cobalt steel resists wear to stay sharp when cutting hard materials, such as nickel. Also known as spotting drill bits.
    Short Length—The most rigid bits for drilling the straightest holes.
    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
    90° Point Angle
    120° Point Angle
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Each
    Each
    Short Length
     
    Titanium Aluminum Nitride (TiAlN) Coated
    1/4"
    0.25"
    2 5/8"0.9"Round
    1/4"Standard
    000000000000000———0
    1/4"
    0.25"
    2 5/8"1.38"Round
    1/4"Standard
    ———0000000000000000
    3/8"
    0.375"
    3 1/2"1"Round
    3/8"Standard
    0000000000000000000000000000
    1/2"
    0.5"
    4"1.38"Round
    1/2"Standard
    0000000000000000000000000000
     
    Uncoated
    1/8"
    0.125"
    2"0.4"Round
    1/8"Standard
    00000000000000———0
    1/4"
    0.25"
    2 5/8"0.89"Round
    1/4"Standard
    00000000000000000000000000
    3/8"
    0.375"
    3 1/2"1"Round
    3/8"Standard
    00000000000000000000000000
    1/2"
    0.5"
    4"1.38"Round
    1/2"Standard
    00000000000000000000000000
    5/8"
    0.625"
    4 1/2"1.38"Round
    5/8"Standard
    00000000000000000000000000
    3/4"
    0.75"
    5 1/8"1.63"Round
    3/4"Standard
    00000000000000000000000000
    3.0 mm
    0.1181"
    50 mm10.2 mmRound
    3 mmStandard
    00000000000000———0
    4.0 mm
    0.1575"
    52 mm12.7 mmRound
    4 mmStandard
    00000000000000000000000000
    5.0 mm
    0.1968"
    60 mm15 mmRound
    5 mmStandard
    00000000000000000000000000
    6.0 mm
    0.2362"
    67 mm20.3 mmRound
    6 mmStandard
    0000000000000———0
    8.0 mm
    0.315"
    79 mm25.4 mmRound
    8 mmStandard
    0000000000000———0
    10.0 mm0.3937"
    89 mm25.4 mmRound
    10 mmStandard
    0000000000000———0
    12.0 mm
    0.4724"
    102 mm31.7 mmRound
    12 mmStandard
    0000000000000———0
     
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