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    170 Products
    About Drill Bits
    industrial info icon

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

    Coolant-Fed Carbide-Tipped Drill Bits

    Image of Product. Front orientation. Contains Inset. Drill Bits. Coolant-Fed Carbide-Tipped Drill Bits, Extended Length, Round Shank.

    Extended Length

    Round Shank

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

    Standard

    Channel coolant through the holes to reduce heat and evacuate chips more efficiently than other bits. These are designed for CNC machines that supply coolant through the spindle rather than an external source, such as a hose and nozzle. Coolant flows directly from the bit's tip onto the drilling surface. This speeds up cuts and leads to excellent performance in deep holes and tough materials such as stainless steel and titanium. A lower-price alternative to solid carbide, they stay sharp when drilling abrasive material but won’t last as long.
    Extended Length—Also known as gun drills, drill through panels and thick workpieces with our longest bits. Their length is good for creating deep holes but makes them less rigid than other bits. As a result, they are more prone to wobbling or breaking, especially when drilling hard materials.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Each
    Extended Length
     
    Uncoated
    1/8"
    0.125"
    10"7"Round
    0.7498"Standard
    000000000000000
    1/8"
    0.125"
    12"8.5"Round
    0.7498"Standard
    00000000000000
    1/8"
    0.125"
    16"12.5"Round
    0.7498"Standard
    00000000000000
    5/32"
    0.1563"
    10"7"Round
    0.7498"Standard
    00000000000000
    5/32"
    0.1563"
    12"8.5"Round
    0.7498"Standard
    0000000000000
    5/32"
    0.1563"
    16"12.5"Round
    0.7498"Standard
    00000000000000
    3/16"
    0.1875"
    10"7"Round
    0.7498"Standard
    00000000000000
    3/16"
    0.1875"
    12"8.5"Round
    0.7498"Standard
    00000000000000
    3/16"
    0.1875"
    16"12.5"Round
    0.7498"Standard
    00000000000000
    7/32"
    0.2188"
    10"7"Round
    0.7498"Standard
    00000000000000
    7/32"
    0.2188"
    12"8.5"Round
    0.7498"Standard
    00000000000000
    7/32"
    0.2188"
    16"12.5"Round
    0.7498"Standard
    00000000000000
    7/32"
    0.2188"
    22"18"Round
    0.7498"Standard
    0000000000000
    1/4"
    0.25"
    10"7"Round
    0.7498"Standard
    00000000000000
    1/4"
    0.25"
    12"8.5"Round
    0.7498"Standard
    00000000000000
    1/4"
    0.25"
    16"12.5"Round
    0.7498"Standard
    00000000000000
    1/4"
    0.25"
    22"18"Round
    0.7498"Standard
    00000000000000
    1/4"
    0.25"
    28"24"Round
    0.7498"Standard
    00000000000000
    17/64"
    0.2656"
    10"7"Round
    0.7498"Standard
    0000000000000
    17/64"
    0.2656"
    12"8.5"Round
    0.7498"Standard
    00000000000000
    17/64"
    0.2656"
    16"12.5"Round
    0.7498"Standard
    00000000000000
    17/64"
    0.2656"
    22"18"Round
    0.7498"Standard
    00000000000000
    17/64"
    0.2656"
    28"24"Round
    0.7498"Standard
    00000000000000
    9/32"
    0.2813"
    10"7"Round
    0.7498"Standard
    00000000000000
    9/32"
    0.2813"
    12"8.5"Round
    0.7498"Standard
    00000000000000
    9/32"
    0.2813"
    16"12.5"Round
    0.7498"Standard
    00000000000000
    9/32"
    0.2813"
    22"18"Round
    0.7498"Standard
    00000000000000
    9/32"
    0.2813"
    28"24"Round
    0.7498"Standard
    00000000000000
    5/16"
    0.3125"
    10"7"Round
    0.7498"Standard
    00000000000000
    5/16"
    0.3125"
    12"8.5"Round
    0.7498"Standard
    00000000000000
    5/16"
    0.3125"
    16"12.5"Round
    0.7498"Standard
    00000000000000
    5/16"
    0.3125"
    22"18"Round
    0.7498"Standard
    00000000000000
    5/16"
    0.3125"
    28"24"Round
    0.7498"Standard
    00000000000000
    3/8"
    0.375"
    10"7"Round
    0.7498"Standard
    00000000000000
    3/8"
    0.375"
    12"8.5"Round
    0.7498"Standard
    00000000000000
    3/8"
    0.375"
    16"12.5"Round
    0.7498"Standard
    00000000000000
    3/8"
    0.375"
    22"18"Round
    0.7498"Standard
    0000000000000
    3/8"
    0.375"
    28"24"Round
    0.7498"Standard
    00000000000000
    13/32"
    0.4063"
    10"7"Round
    0.7498"Standard
    00000000000000
    13/32"
    0.4063"
    12"8.5"Round
    0.7498"Standard
    00000000000000
    13/32"
    0.4063"
    16"12.5"Round
    0.7498"Standard
    00000000000000
    13/32"
    0.4063"
    22"18"Round
    0.7498"Standard
    0000000000000
    13/32"
    0.4063"
    28"24"Round
    0.7498"Standard
    00000000000000
    13/32"
    0.4063"
    36"32"Round
    0.7498"Standard
    00000000000000
    1/2"
    0.5"
    10"7"Round
    0.7498"Standard
    00000000000000
    1/2"
    0.5"
    12"8.5"Round
    0.7498"Standard
    00000000000000
    1/2"
    0.5"
    16"12.5"Round
    0.7498"Standard
    0000000000000
    1/2"
    0.5"
    22"18"Round
    0.7498"Standard
    00000000000000
    1/2"
    0.5"
    28"24"Round
    0.7498"Standard
    00000000000000
    1/2"
    0.5"
    36"32"Round
    0.7498"Standard
    00000000000000
     

    Coolant-Fed Carbide Drill Bits

    The hardest and most wear-resistant bits, these deliver coolant to reduce heat and evacuate chips. They are designed for CNC machines that supply coolant through the spindle rather than an external source, such as a hose and nozzle. Coolant flows directly from holes in the bit's tip onto the drilling surface. This speeds up cuts and leads to excellent performance in deep holes and tough materials such as stainless steel and titanium.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Maintenance Length—Shorter than jobbers' length, these bits are more rigid for less wobble when drilling hard material. Also known as mechanics’ bits.
    Titanium Aluminum Nitride (TiAlN) Coated—No drill bits last longer. These are the best for high-speed, high-temperature drilling of very hard and abrasive materials, including titanium and fiberglass.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit Point
    Type
    Each
    Jobbers' Length
    Image of Product. Front orientation. Drill Bits. Coolant-Fed Carbide Drill Bits, Jobbers' Length, Round Shank.

    Round Shank

     
    Titanium Aluminum Nitride (TiAlN) Coated
    1/8"
    0.125"
    2"0.75"Round
    1/8"Four Facet
    00000000000000
    9/64"
    0.1406"
    2 1/4"0.88"Round
    9/64"Four Facet
    000000000000
    5/32"
    0.1563"
    2 1/2"0.94"Round
    5/32"Four Facet
    0000000000000
    11/64"
    0.1719"
    2 1/2"1"Round
    11/64"Four Facet
    0000000000000
    3/16"
    0.1875"
    2 3/4"1.25"Round
    3/16"Four Facet
    000000000000
    13/64"
    0.2031"
    3"1.31"Round
    13/64"Four Facet
    0000000000000
    7/32"
    0.2188"
    3"1.38"Round
    7/32"Four Facet
    0000000000000
    1/4"
    0.25"
    3 1/4"1.63"Round
    1/4"Four Facet
    0000000000000
    17/64"
    0.2656"
    3 1/2"1.69"Round
    17/64"Four Facet
    0000000000000
    9/32"
    0.2813"
    3 1/2"1.75"Round
    9/32"Four Facet
    0000000000000
    5/16"
    0.3125"
    3 3/4"1.88"Round
    5/16"Four Facet
    00000000000000
    3/8"
    0.375"
    4 1/4"2.38"Round
    3/8"Four Facet
    00000000000000
    7/16"
    0.4375"
    4 3/4"2.81"Round
    7/16"Four Facet
    00000000000000
    1/2"
    0.5"
    5 3/8"3.06"Round
    1/2"Four Facet
    00000000000000
    3.0 mm
    0.1181"
    67 mm27.9 mmRound
    6 mmFour Facet
    0000000000000
    4.0 mm
    0.1575"
    73 mm36.1 mmRound
    6 mmFour Facet
    0000000000000
    5.0 mm
    0.1969"
    83 mm43.9 mmRound
    6 mmFour Facet
    000000000000
    6.0 mm
    0.2362"
    83 mm43.9 mmRound
    6 mmFour Facet
    0000000000000
    7.0 mm
    0.2756"
    92 mm53.1 mmRound
    8 mmFour Facet
    00000000000000
    7.5 mm
    0.2953"
    92 mm53.1 mmRound
    8 mmFour Facet
    0000000000000
    8.0 mm
    0.315"
    92 mm53.1 mmRound
    8 mmFour Facet
    00000000000000
    8.5 mm
    0.3346"
    102 mm61 mmRound
    10 mmFour Facet
    00000000000000
    9.0 mm
    0.3543"
    102 mm61 mmRound
    10 mmFour Facet
    00000000000000
    9.5 mm
    0.374"
    102 mm61 mmRound
    10 mmFour Facet
    00000000000000
    10.0 mm0.3937"
    102 mm61 mmRound
    10 mmFour Facet
    00000000000000
     
    Maintenance Length
    Image of Product. Side1 orientation. Drill Bits. Coolant-Fed Carbide Drill Bits, Maintenance Length, Round Shank.

    Round Shank

     
    Titanium Aluminum Nitride (TiAlN) Coated
    1/8"
    0.125"
    1 15/16"0.69"Round
    1/8"Four Facet
    0000000000000
    9/64"
    0.1406"
    2 1/16"0.75"Round
    9/64"Four Facet
    0000000000000
    5/32"
    0.1563"
    2 3/16"0.81"Round
    5/32"Four Facet
    0000000000000
    11/64"
    0.1719"
    2 9/32"0.94"Round
    11/64"Four Facet
    000000000000
    3/16"
    0.1875"
    2 13/32"1"Round
    3/16"Four Facet
    0000000000000
    13/64"
    0.2031"
    2 13/32"1"Round
    13/64"Four Facet
    0000000000000
    7/32"
    0.2188"
    2 5/8"1.09"Round
    7/32"Four Facet
    0000000000000
    1/4"
    0.25"
    2 3/4"1.22"Round
    1/4"Four Facet
    0000000000000
    17/64"
    0.2656"
    2 15/16"1.34"Round
    17/64"Four Facet
    0000000000000
    9/32"
    0.2813"
    2 15/16"1.34"Round
    9/32"Four Facet
    0000000000000
    5/16"
    0.3125"
    3 3/32"1.47"Round
    5/16"Four Facet
    0000000000000
    3/8"
    0.375"
    3 1/2"1.69"Round
    3/8"Four Facet
    00000000000000
    7/16"
    0.4375"
    3 3/4"1.81"Round
    7/16"Four Facet
    0000000000000
    1/2"
    0.5"
    4"1.94"Round
    1/2"Four Facet
    00000000000000
    3.0 mm
    0.1181"
    64 mm20.1 mmRound
    6 mmFour Facet
    0000000000000
    4.0 mm
    0.1575"
    67 mm23.9 mmRound
    6 mmFour Facet
    0000000000000
    5.0 mm
    0.1969"
    67 mm27.9 mmRound
    6 mmFour Facet
    0000000000000
    6.0 mm
    0.2362"
    67 mm27.9 mmRound
    6 mmFour Facet
    0000000000000
    7.0 mm
    0.2756"
    79 mm34 mmRound
    8 mmFour Facet
    0000000000000
    7.5 mm
    0.2953"
    79 mm40.9 mmRound
    8 mmFour Facet
    0000000000000
    8.0 mm
    0.315"
    79 mm40.9 mmRound
    8 mmFour Facet
    0000000000000
    8.5 mm
    0.3346"
    89 mm47 mmRound
    10 mmFour Facet
    00000000000000
    9.0 mm
    0.3543"
    89 mm47 mmRound
    10 mmFour Facet
    00000000000000
    9.5 mm
    0.374"
    89 mm88.9 mmRound
    10 mmFour Facet
    00000000000000
    10.0 mm0.3937"
    89 mm47 mmRound
    10 mmFour Facet
    0000000000000
     

    Carbide-Insert Drill Bits

    Image of Product. Shown with Carbide Inserts (Sold Separately). Front orientation. Contains Inset. Drill Bits. Carbide-Insert Drill Bits.

    Shown with Carbide Inserts

    (Sold Separately)

    When you need to drill dozens or even hundreds of holes, use a bit with replaceable carbide inserts. Once the cutting edges wear down, just change the inserts instead of sharpening or throwing the bit away. The holes in the bit channel coolant through the tool for more efficient chip evacuation. Also known as indexable drill bits.
    Each drill bit requires two inserts—one on the inner cutting edge and one on the outer cutting edge. Replacement inserts are sold separately.
    Drill Bits
    Replacement
    Insert Screws
    Shank
    For Insert
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit Point
    Type
    Inner Inscribed
    Circle Dia.
    Outer Inscribed
    Circle Dia.
    Each
    Each
    1/2"
    0.5"
    4"1 1/2"Round
    3/4"Carbide Insert
    0.189"0.189"00000000000000000000000000
    1/2"
    0.5"
    5"2 1/2"Round
    3/4"Carbide Insert
    0.189"0.189"000000000000000000000000
    9/16"
    0.562"
    4 1/4"1.69"Round
    3/4"Carbide Insert
    0.193"0.201"000000000000000000000000
    9/16"
    0.562"
    5 3/8"2.81"Round
    3/4"Carbide Insert
    0.193"0.201"000000000000000000000000
    5/8"
    0.625"
    4 1/2"1.88"Round
    3/4"Carbide Insert
    0.193"0.201"000000000000000000000000
    5/8"
    0.625"
    5 3/4"3.16"Round
    3/4"Carbide Insert
    0.193"0.201"000000000000000000000000
    11/16"
    0.687"
    5"2.06"Round
    1"Carbide Insert
    0.224"0.236"000000000000000000000000
    11/16"
    0.687"
    6 3/8"3.44"Round
    1"Carbide Insert
    0.224"0.236"000000000000000000000000
    3/4"
    0.75"
    5 1/4"2 1/4"Round
    1"Carbide Insert
    0.224"0.236"000000000000000000000000
    3/4"
    0.75"
    6 3/4"3 3/4"Round
    1"Carbide Insert
    0.224"0.236"000000000000000000000000
    7/8"
    0.875"
    5 5/8"2.63"Round
    1"Carbide Insert
    0.268"0.295"000000000000000000000000
    7/8"
    0.875"
    7 3/8"4.38"Round
    1"Carbide Insert
    0.268"0.295"000000000000000000000000
    1"
    1"
    6 1/8"3"Round
    1"Carbide Insert
    0.331"0.350"000000000000000000000000
    1"
    1"
    8 1/8"5"Round
    1"Carbide Insert
    0.331"0.350"000000000000000000000000
    1 1/8"
    1.125"
    6 3/4"3.38"Round
    1 1/4"Carbide Insert
    0.331"0.350"000000000000000000000000
    1 1/8"
    1.125"
    9"5.63"Round
    1 1/4"Carbide Insert
    0.331"0.350"00000000000000000000000000
    1 1/4"
    1.25"
    7 5/8"3 3/4"Round
    1 1/2"Carbide Insert
    0.402"0.419"000000000000000000000000
    1 1/4"
    1.25"
    10 1/8"6 1/4"Round
    1 1/2"Carbide Insert
    0.402"0.419"00000000000000000000000000
    1 3/8"
    1.375"
    8"4.13"Round
    1 1/2"Carbide Insert
    0.402"0.419"000000000000000000000000
    1 3/8"
    1.375"
    10 3/4"6.88"Round
    1 1/2"Carbide Insert
    0.402"0.419"00000000000000000000000000
    1 1/2"
    1.5"
    8 1/2"4 1/2"Round
    1 1/2"Carbide Insert
    0.486"0.498"000000000000000000000000
    1 1/2"
    1.5"
    11 1/2"7 1/2"Round
    1 1/2"Carbide Insert
    0.486"0.498"00000000000000000000000000
    1 5/8"
    1.625"
    9"4.88"Round
    1 1/2"Carbide Insert
    0.486"0.498"000000000000000000000000
    1 5/8"
    1.625"
    12 1/4"8.13"Round
    1 1/2"Carbide Insert
    0.486"0.498"00000000000000000000000000
    1 3/4"
    1.75"
    9 3/8"5 1/4"Round
    1 1/2"Carbide Insert
    0.585"0.608"000000000000000000000000
    2"
    2"
    10 3/8"6"Round
    1 1/2"Carbide Insert
    0.585"0.608"00000000000000000000000000
    2 1/4"
    2.25"
    11 1/4"6 3/4"Round
    1 1/2"Carbide Insert
    0.705"0.732"00000000000000000000000000
    2 1/2"
    2.5"
    12 1/4"7 1/2"Round
    1 1/2"Carbide Insert
    0.705"0.732"00000000000000000000000000
     
    Drill Bit Inserts
    Image of Product. Front orientation. Drill Bit Inserts. Inner Inserts.
    Image of Product. Front orientation. Drill Bit Inserts. Outer Inserts.

    Inner Inserts

    Outer Inserts

    Image of Attribute. Inner Inserts. Front orientation. Contains Annotated, MultipleImages. Drill Bit Inserts. Inner Inserts.
    Image of Attribute. Outer Inserts. Front orientation. Contains Annotated, MultipleImages. Drill Bit Inserts. Outer Inserts.

    Inner Inserts

    Outer Inserts

    Each
    Package
    For Drill
    Bit Size
    IC
    Dia.
    Thk.
    Hole
    Dia.
    Tip
    Radius
    For Use On
    Features
    Each
    Pkg.
    Qty.
    Pkg.
    Inner Inserts
     
    Titanium Aluminum Nitride (TiAlN)-Coated Carbide
    1/2"0.189"3/32"1/16"1/64"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers000000000000010000000000000000
    9/16", 5/8"0.193"3/32"1/16"1/64"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    11/16", 3/4"0.224"3/32"1/8"1/64"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    7/8"0.268"1/8"1/8"1/64"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    1", 1 1/8"0.331"1/8"1/8"1/64"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    1 1/4", 1 3/8"0.402"1/8"3/16"1/32"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    1 1/2", 1 5/8"0.486"5/32"3/16"1/32"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    1 3/4", 2"0.585"3/16"3/16"1/32"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    2 1/4", 2 1/2"0.705"7/32"3/16"1/32"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
     
    Outer Inserts
     
    Titanium Nitride (TiN)-Coated Carbide
    1/2"0.189"3/32"1/16"1/64"Aluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    9/16", 5/8"0.201"3/32"1/16"1/64"Aluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    11/16", 3/4"0.236"3/32"1/8"1/32"Aluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    7/8"0.295"1/8"1/8"1/32"Aluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    1", 1 1/8"0.350"1/8"1/8"1/32"Aluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    1 1/4", 1 3/8"0.419"1/8"3/16"1/32"Aluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    1 1/2", 1 5/8"0.498"5/32"3/16"3/64"Aluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
    1 3/4", 2"0.608"3/16"3/16"3/64"Aluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers000000000000100000000000000
    2 1/4", 2 1/2"0.732"7/32"3/16"3/64"Aluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers0000000000001000000000000000
     
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