McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    212 Products

    Left-Hand Drill Bits

    With flutes that spiral in the opposite direction of other bits, these are primarily used to remove stripped screws. Choose a bit that’s slightly smaller than the diameter of the screw’s head. Set your power tool to rotate in reverse. Slowly drill in the center of the screw head, maintaining constant pressure. As the bit penetrates, it will catch onto the screw and reverse it out of the hole. If the screw is badly stripped, you might need to punch a starter hole. Also known as reverse-flute bits.
    High-Speed Steel Jobbers' Length
    Image of Product. Front orientation. Drill Bits. Left-Hand Drill Bits, Jobbers' Length, Spiral Flute, Round Shank.

    Spiral Flute

    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

    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.
    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.
    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—Require more pressure to start holes than split-point bits.
    Split Point—Easier to start holes and stay centered than standard-point bits.
    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
    Black Oxide
     
    Metric
    3.0 mm0.1181"61 mm25.5 mmSpiralRound3 mmStandard2DIN 3380000000000000
    3.2 mm0.126"65 mm12.8 mmSpiralRound3.2 mmStandard2DIN 33800000000000000
    3.3 mm0.13"65 mm28.7 mmSpiralRound3.3 mmStandard2DIN 3380000000000000
    3.5 mm0.1378"70 mm31.3 mmSpiralRound3.5 mmStandard2DIN 338000000000000
    3.8 mm0.1496"75 mm15.2 mmSpiralRound3.8 mmStandard2DIN 33800000000000000
    4.0 mm0.1575"75 mm35 mmSpiralRound4 mmStandard2DIN 338000000000000
    4.2 mm0.1654"75 mm34.6 mmSpiralRound4.2 mmStandard2DIN 3380000000000000
    4.5 mm0.1772"80 mm38 mmSpiralRound4.5 mmStandard2DIN 3380000000000000
    4.8 mm0.189"86 mm42.4 mmSpiralRound4.8 mmStandard2DIN 3380000000000000
    5.0 mm0.1968"86 mm43 mmSpiralRound5 mmStandard2DIN 3380000000000000
    5.1 mm0.2008"86 mm42.8 mmSpiralRound5.1 mmStandard2DIN 3380000000000000
    5.2 mm0.2047"86 mm20.8 mmSpiralRound5.2 mmStandard2DIN 33800000000000000
    5.5 mm0.2165"93 mm47.1 mmSpiralRound5.5 mmStandard2DIN 3380000000000000
    6.0 mm0.2362"93 mm48 mmSpiralRound6 mmStandard2DIN 3380000000000000
    6.5 mm0.2559"101 mm53.3 mmSpiralRound6.5 mmStandard2DIN 3380000000000000
    7.0 mm0.2756"109 mm59.9 mmSpiralRound7 mmStandard2DIN 3380000000000000
    8.0 mm0.315"117 mm64.6 mmSpiralRound8 mmStandard2DIN 3380000000000000
    8.5 mm0.3346"117 mm63.9 mmSpiralRound8.5 mmStandard2DIN 3380000000000000
    9.0 mm0.3543"125 mm69.3 mmSpiralRound9 mmStandard2DIN 3380000000000000
    10.0 mm0.3937"133 mm74 mmSpiralRound10 mmStandard2DIN 3380000000000000
    12.0 mm0.4724"151 mm86.6 mmSpiralRound12 mmStandard2DIN 3380000000000000
     
    Gold Oxide
     
    Inch
    1/16"0.0625"1 7/8"0.75"SpiralRound1/16"Split2000000000000
    5/64"0.0781"2"0.88"SpiralRound5/64"Split2000000000000
    3/32"0.0938"2 1/4"1.22"SpiralRound3/32"Split2000000000000
    7/64"0.1094"2 5/8"1.47"SpiralRound7/64"Split2000000000000
    1/8"0.125"2 3/4"1.5"SpiralRound1/8"Split2000000000000
    9/64"0.1406"2 7/8"1.63"SpiralRound9/64"Split2000000000000
    5/32"0.1563"3 1/8"1.88"SpiralRound5/32"Split2000000000000
    11/64"0.1719"3 1/4"2.09"SpiralRound11/64"Split2000000000000
    3/16"0.1875"3 1/2"2.28"SpiralRound3/16"Split2000000000000
    13/64"0.2031"3 5/8"2.41"SpiralRound13/64"Split20000000000000
    7/32"0.2188"3 3/4"2.47"SpiralRound7/32"Split20000000000000
    15/64"0.2344"3 7/8"2.5"SpiralRound15/64"Split20000000000000
    1/4"0.25"4"2.63"SpiralRound1/4"Split20000000000000
    17/64"0.2656"4 1/8"2.75"SpiralRound17/64"Split20000000000000
    9/32"0.2813"4 1/4"2.81"SpiralRound9/32"Split20000000000000
    19/64"0.2969"4 3/8"2.94"SpiralRound19/64"Split20000000000000
    5/16"0.3125"4 1/2"3.16"SpiralRound5/16"Split20000000000000
    3/8"0.375"5"3.5"SpiralRound3/8"Split20000000000000
    7/16"0.4375"5 1/2"3.94"SpiralRound7/16"Split20000000000000
    1/2"0.5"6"4.45"SpiralRound1/2"Split20000000000000
     
    Uncoated
     
    Inch
    1/32"0.0313"1 3/8"0.43"SpiralRound1/32"Standard200000000000
    3/64"0.0469"1 3/4"0.65"SpiralRound3/64"Standard200000000000
    1/16"0.0625"1 7/8"0.75"SpiralRound1/16"Standard200000000000
    5/64"0.0781"2"0.84"SpiralRound5/64"Standard200000000000
    3/32"0.0938"2 1/4"1.06"SpiralRound3/32"Standard200000000000
    7/64"0.1094"2 5/8"1.28"SpiralRound7/64"Standard200000000000
    1/8"0.125"2 3/4"1.37"SpiralRound1/8"Standard200000000000
    9/64"0.1406"2 7/8"1.46"SpiralRound9/64"Standard200000000000
    5/32"0.1563"3 1/8"1.68"SpiralRound5/32"Standard200000000000
    11/64"0.1719"3 1/4"1.78"SpiralRound11/64"Standard200000000000
    3/16"0.1875"3 1/2"1.93"SpiralRound3/16"Standard200000000000
    13/64"0.2031"3 5/8"2.03"SpiralRound13/64"Standard200000000000
    7/32"0.2188"3 3/4"2.06"SpiralRound7/32"Standard200000000000
    15/64"0.2344"3 7/8"2.15"SpiralRound15/64"Standard2000000000000
    1/4"0.25"4"2.25"SpiralRound1/4"Standard2000000000000
    17/64"0.2656"4 1/8"2.34"SpiralRound17/64"Standard2000000000000
    9/32"0.2813"4 1/4"2.37"SpiralRound9/32"Standard2000000000000
    19/64"0.2969"4 3/8"2.46"SpiralRound19/64"Standard2000000000000
    5/16"0.3125"4 1/2"2.56"SpiralRound5/16"Standard2000000000000
    21/64"0.3281"4 5/8"2.65"SpiralRound21/64"Standard2000000000000
    11/32"0.3438"4 3/4"2.74"SpiralRound11/32"Standard2000000000000
    23/64"0.3594"4 7/8"2.78"SpiralRound23/64"Standard2000000000000
    3/8"0.375"5"2.87"SpiralRound3/8"Standard2000000000000
    25/64"0.3906"5 1/8"2.96"SpiralRound25/64"Standard2000000000000
    13/32"0.4063"5 1/4"3.06"SpiralRound13/32"Standard2000000000000
    27/64"0.4219"5 3/8"3.09"SpiralRound27/64"Standard2000000000000
    7/16"0.4375"5 1/2"3.18"SpiralRound7/16"Standard2000000000000
    29/64"0.4531"5 5/8"3.28"SpiralRound29/64"Standard2000000000000
    15/32"0.4688"5 3/4"3.37"SpiralRound15/32"Standard2000000000000
    31/64"0.4844"5 7/8"3.4"SpiralRound31/64"Standard2000000000000
    1/2"0.5"6"3.5"SpiralRound1/2"Standard2000000000000
     
    Metric
    1.0 mm0.0394"34 mm9 mmSpiralRound1 mmStandard2DIN 3380000000000000
    1.1 mm0.0433"36 mm4.4 mmSpiralRound1.1 mmStandard2DIN 33800000000000000
    1.2 mm0.0472"38 mm4.8 mmSpiralRound1.2 mmStandard2DIN 33800000000000000
    1.25 mm0.0492"38 mm12.3 mmSpiralRound1.25 mmStandard2DIN 3380000000000000
    1.3 mm0.0512"38 mm12.1 mmSpiralRound1.3 mmStandard2DIN 3380000000000000
    1.4 mm0.0551"40 mm5.6 mmSpiralRound1.4 mmStandard2DIN 33800000000000000
    1.5 mm0.0591"40 mm13.5 mmSpiralRound1.5 mmStandard2DIN 338000000000000
    1.6 mm0.063"43 mm15.2 mmSpiralRound1.6 mmStandard2DIN 3380000000000000
    1.7 mm0.0669"43 mm6.8 mmSpiralRound1.7 mmStandard2DIN 33800000000000000
    1.8 mm0.0709"46 mm7.2 mmSpiralRound1.8 mmStandard2DIN 33800000000000000
    1.9 mm0.0748"46 mm7.6 mmSpiralRound1.9 mmStandard2DIN 33800000000000000
    2.0 mm0.0787"49 mm19 mmSpiralRound2 mmStandard2DIN 338000000000000
    2.1 mm0.0827"49 mm18.8 mmSpiralRound2.1 mmStandard2DIN 3380000000000000
    2.2 mm0.0866"53 mm21.5 mmSpiralRound2.2 mmStandard2DIN 3380000000000000
    2.5 mm0.0984"57 mm23.7 mmSpiralRound2.5 mmStandard2DIN 338000000000000
    2.9 mm0.1142"61 mm11.6 mmSpiralRound2.9 mmStandard2DIN 33800000000000000
     
    Wire Gauge
    60 Ga.0.04"1 5/8"0.6"SpiralRound0.04"Standard2000000000000
    59 Ga.0.041"1 5/8"0.6"SpiralRound0.041"Standard2000000000000
    58 Ga.0.042"1 5/8"0.6"SpiralRound0.042"Standard2000000000000
    57 Ga.0.043"1 3/4"0.66"SpiralRound0.043"Standard2000000000000
    56 Ga.0.0465"1 3/4"0.65"SpiralRound0.0465"Standard2000000000000
    55 Ga.0.052"1 7/8"0.77"SpiralRound0.052"Standard2000000000000
    54 Ga.0.055"1 7/8"0.76"SpiralRound0.055"Standard2000000000000
    53 Ga.0.0595"1 7/8"0.75"SpiralRound0.0595"Standard2000000000000
    52 Ga.0.0635"1 7/8"0.74"SpiralRound0.0635"Standard2000000000000
    51 Ga.0.067"2"0.86"SpiralRound0.067"Standard2000000000000
    50 Ga.0.07"2"0.86"SpiralRound0.07"Standard2000000000000
    49 Ga.0.073"2"0.85"SpiralRound0.073"Standard2000000000000
    48 Ga.0.076"2"0.84"SpiralRound0.076"Standard2000000000000
    47 Ga.0.0785"2"0.84"SpiralRound0.0785"Standard2000000000000
    46 Ga.0.081"2 1/8"0.96"SpiralRound0.081"Standard2000000000000
    45 Ga.0.082"2 1/8"0.96"SpiralRound0.082"Standard2000000000000
    44 Ga.0.086"2 1/8"0.95"SpiralRound0.086"Standard2000000000000
    43 Ga.0.089"2 1/4"1.07"SpiralRound0.089"Standard2000000000000
    42 Ga.0.0935"2 1/4"1.06"SpiralRound0.0935"Standard2000000000000
    41 Ga.0.096"2 3/8"1.18"SpiralRound0.096"Standard2000000000000
    40 Ga.0.098"2 3/8"1.17"SpiralRound0.098"Standard2000000000000
    39 Ga.0.0995"2 3/8"1.17"SpiralRound0.0995"Standard2000000000000
    38 Ga.0.1015"2 1/2"1.23"SpiralRound0.1015"Standard2000000000000
    37 Ga.0.104"2 1/2"1.22"SpiralRound0.104"Standard2000000000000
    36 Ga.0.1065"2 1/2"1.22"SpiralRound0.1065"Standard2000000000000
    35 Ga.0.11"2 5/8"1.28"SpiralRound0.11"Standard2000000000000
    34 Ga.0.111"2 5/8"1.27"SpiralRound0.111"Standard2000000000000
    33 Ga.0.113"2 5/8"1.27"SpiralRound0.113"Standard2000000000000
    32 Ga.0.116"2 3/4"1.39"SpiralRound0.116"Standard2000000000000
    31 Ga.0.12"2 3/4"1.38"SpiralRound0.12"Standard2000000000000
    30 Ga.0.1285"2 3/4"1.36"SpiralRound0.1285"Standard2000000000000
    29 Ga.0.136"2 7/8"1.47"SpiralRound0.136"Standard2000000000000
    28 Ga.0.1405"2 7/8"1.46"SpiralRound0.1405"Standard2000000000000
    27 Ga.0.144"3"1.58"SpiralRound0.144"Standard2000000000000
    26 Ga.0.147"3"1.58"SpiralRound0.147"Standard2000000000000
    25 Ga.0.1495"3"1.57"SpiralRound0.1495"Standard2000000000000
    24 Ga.0.152"3 1/8"1.69"SpiralRound0.152"Standard2000000000000
    23 Ga.0.154"3 1/8"1.69"SpiralRound0.154"Standard2000000000000
    22 Ga.0.157"3 1/8"1.68"SpiralRound0.157"Standard2000000000000
    21 Ga.0.159"3 1/4"1.8"SpiralRound0.159"Standard2000000000000
    20 Ga.0.161"3 1/4"1.8"SpiralRound0.161"Standard2000000000000
    19 Ga.0.166"3 1/4"1.79"SpiralRound0.166"Standard2000000000000
    18 Ga.0.1695"3 1/4"1.78"SpiralRound0.1695"Standard2000000000000
    17 Ga.0.173"3 3/8"1.84"SpiralRound0.173"Standard2000000000000
    16 Ga.0.177"3 3/8"1.83"SpiralRound0.177"Standard2000000000000
    15 Ga.0.18"3 3/8"1.82"SpiralRound0.18"Standard2000000000000
    14 Ga.0.182"3 3/8"1.82"SpiralRound0.182"Standard2000000000000
    13 Ga.0.185"3 1/2"1.94"SpiralRound0.185"Standard2000000000000
    12 Ga.0.189"3 1/2"1.93"SpiralRound0.189"Standard20000000000000
    11 Ga.0.191"3 1/2"1.93"SpiralRound0.191"Standard20000000000000
    10 Ga.0.1935"3 5/8"2.05"SpiralRound0.1935"Standard20000000000000
    9 Ga.0.196"3 5/8"2.04"SpiralRound0.196"Standard20000000000000
    8 Ga.0.199"3 5/8"2.03"SpiralRound0.199"Standard20000000000000
    7 Ga.0.201"3 5/8"2.03"SpiralRound0.201"Standard20000000000000
    6 Ga.0.204"3 3/4"2.09"SpiralRound0.204"Standard20000000000000
    5 Ga.0.2055"3 3/4"2.08"SpiralRound0.2055"Standard20000000000000
    4 Ga.0.209"3 3/4"2.08"SpiralRound0.209"Standard20000000000000
    3 Ga.0.213"3 3/4"2.07"SpiralRound0.213"Standard20000000000000
    2 Ga.0.221"3 7/8"2.18"SpiralRound0.221"Standard20000000000000
    1 Ga.0.228"3 7/8"2.16"SpiralRound0.228"Standard20000000000000
     
    Cobalt Steel Jobbers' Length
    Image of Product. Front orientation. Drill Bits. Left-Hand Drill Bits, Jobbers' Length, Spiral Flute, Round Shank.

    Spiral Flute

    Round Shank

    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.
    Round Shank—The most common shank type. These fit in the chuck of drill presses and portable drills.
    Split Point—Easier to start holes and stay centered than standard-point bits.
    Shank
    Drill Bit
    Size, mm
    Decimal Size
    Equiv.
    Overall
    Lg., mm
    Max. Drilling
    Dp., mm
    Flute
    Type
    Type
    Size,
    mm
    Drill Bit
    Point Type
    No. of
    Flutes
    Specs. Met
    Each
    Uncoated
     
    Metric
    1.50.0591"4822SpiralRound1.5Split2NAS907 Type J000000000000
    2.00.0787"5125SpiralRound2Split2NAS907 Type J00000000000
    2.50.0984"6035SpiralRound2.5Split2NAS907 Type J00000000000
    3.00.1181"7041SpiralRound3Split2NAS907 Type J00000000000
    3.50.1378"7345SpiralRound3.5Split2NAS907 Type J00000000000
    4.00.1575"8354SpiralRound4Split2NAS907 Type J00000000000
    4.50.1772"8656SpiralRound4.5Split2NAS907 Type J00000000000
    5.00.1968"9262SpiralRound5Split2NAS907 Type J000000000000
    5.50.2165"9564SpiralRound5.5Split2NAS907 Type J000000000000
    6.00.2362"10270SpiralRound6Split2NAS907 Type J000000000000
    6.50.2559"10573SpiralRound6.5Split2NAS907 Type J000000000000
    7.00.2756"10573SpiralRound7Split2NAS907 Type J000000000000
    7.50.2953"11178SpiralRound7.5Split2NAS907 Type J000000000000
    8.00.315"11481SpiralRound8Split2NAS907 Type J000000000000
    8.50.3346"12187SpiralRound8.5Split2NAS907 Type J000000000000
    9.00.3543"12489SpiralRound9Split2NAS907 Type J000000000000
    9.50.374"12792SpiralRound9.5Split2NAS907 Type J000000000000
    10.00.3937"13095SpiralRound10Split2NAS907 Type J000000000000
    10.50.4134"13398SpiralRound10.5Split2NAS907 Type J000000000000
    11.00.4331"140103SpiralRound11Split2NAS907 Type J000000000000
    11.50.4528"143106SpiralRound11.5Split2NAS907 Type J000000000000
    12.00.4724"149111SpiralRound12Split2NAS907 Type J000000000000
    12.50.4921"152114SpiralRound12.5Split2NAS907 Type J000000000000
    13.00.5118"152114SpiralRound13Split2NAS907 Type J000000000000
     
    Cobalt Steel Maintenance Length
    Image of Product. Front orientation. Drill Bits. Left-Hand Drill Bits, Maintenance Length, Spiral Flute, Round Shank.

    Spiral Flute

    Round Shank

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

    Split

    Shorter than jobbers' length, these bits are more rigid for less wobble when drilling hard material. They're made of tough and wear-resistant cobalt, which lasts at least twice as long as high-speed steel. Also known as mechanics' bits.
    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.
    Split Point—Easier to start holes and stay centered than standard-point bits.
    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
    5/64"0.0781"2"0.88"SpiralRound5/64"Split2000000000000
    7/64"0.1094"2 1/4"0.84"SpiralRound7/64"Split200000000000
    1/8"0.125"2 1/4"1.06"SpiralRound1/8"Split200000000000
    5/32"0.1563"2 5/8"1.27"SpiralRound5/32"Split200000000000
    3/16"0.1875"2 7/8"1.34"SpiralRound3/16"Split200000000000
    7/32"0.2188"3 1/8"1.42"SpiralRound7/32"Split200000000000
    1/4"0.25"3 3/8"1.63"SpiralRound1/4"Split200000000000
    5/16"0.3125"3 3/4"1.97"SpiralRound5/16"Split2000000000000
    3/8"0.375"4 1/8"2.06"SpiralRound3/8"Split2000000000000
     
    Titanium Aluminum Nitride (TiAlN) Coated
     
    Inch
    5/64"0.0781"2"0.88"SpiralRound5/64"Split200000000000
    7/64"0.1094"2 1/4"0.84"SpiralRound7/64"Split200000000000
    1/8"0.125"2 1/4"1.06"SpiralRound1/8"Split200000000000
    5/32"0.1563"2 5/8"1.27"SpiralRound5/32"Split200000000000
    3/16"0.1875"2 7/8"1.34"SpiralRound3/16"Split200000000000
    7/32"0.2188"3 1/4"1.42"SpiralRound7/32"Split200000000000
    1/4"0.25"3 3/8"1.63"SpiralRound1/4"Split200000000000
    5/16"0.3125"3 3/4"1.97"SpiralRound5/16"Split2000000000000
    3/8"0.375"4 1/8"2.06"SpiralRound3/8"Split2000000000000
     
    Uncoated
     
    Inch
    5/64"0.0781"2"0.88"SpiralRound5/64"Split200000000000
    7/64"0.1094"2 1/4"0.84"SpiralRound7/64"Split200000000000
    1/8"0.125"2 1/4"1.06"SpiralRound1/8"Split200000000000
    5/32"0.1563"2 5/8"1.27"SpiralRound5/32"Split200000000000
    3/16"0.1875"2 7/8"1.34"SpiralRound3/16"Split200000000000
    7/32"0.2188"3 1/8"1.42"SpiralRound7/32"Split200000000000
    1/4"0.25"3 3/8"1.63"SpiralRound1/4"Split200000000000
    9/32"0.2813"3 5/8"1.7"SpiralRound9/32"Split200000000000
    19/64"0.2969"3 5/8"1.87"SpiralRound19/64"Split200000000000
    5/16"0.3125"3 3/4"1.97"SpiralRound5/16"Split200000000000
    11/32"0.3438"4"1.98"SpiralRound11/32"Split2000000000000
    3/8"0.375"4 1/8"2.06"SpiralRound3/8"Split2000000000000
    13/32"0.4063"4 3/8"2.14"SpiralRound13/32"Split2000000000000
    7/16"0.4375"4 5/8"2.22"SpiralRound7/16"Split2000000000000
    15/32"0.4688"4 3/4"2.23"SpiralRound15/32"Split2000000000000
    1/2"0.5"5"2.31"SpiralRound1/2"Split2000000000000
     

    Left-Hand Drill Bit Sets

    With flutes that spiral in the opposite direction of other bits, these are primarily used to remove stripped screws. Choose a bit that’s slightly smaller than the diameter of the screw’s head. Set your power tool to rotate in reverse. Slowly drill in the center of the screw head, maintaining constant pressure. As the bit penetrates, it will catch onto the screw and reverse it out of the hole. If the screw is badly stripped, you might need to punch a starter hole. Also known as reverse-flute bits.
    High-Speed Steel Jobbers' Length
    Image of Product. Front orientation. Drill Bits. Left-Hand Drill Bit Sets, Jobbers' Length, Spiral Flute.
    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    Spiral Flute

    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.
    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.
    Standard Point—Require more pressure to start holes than split-point bits.
    No. of
    Pieces
    Drill Bit Sizes Included
    Drill Bit Point
    Style
    Flute
    Type
    Container
    Type
    Each
    Uncoated
     
    Inch
    131/16"-1/4" (increments of 1/64")Standard PointSpiralMetal Case000000000000000
    151/16"-1/2" (increments of 1/32")Standard PointSpiralMetal Case000000000000000
    211/16"-3/8" (increments of 1/64")Standard PointSpiralMetal Case000000000000000
    291/16"-1/2" (increments of 1/64")Standard PointSpiralMetal Case00000000000000
     
    Wire Gauge
    6060-1 gaStandard PointSpiralMetal Case00000000000000
     
    Letter Size
    26A-ZStandard PointSpiralMetal Case000000000000000
     
    back to top