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    106 Products
    About Drill Bits
    industrial info icon

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

    High-Speed Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Maintenance Length, 3-Flat Shank, Round Shank.
    Image of Specification. Split. Front orientation. Contains Border. Split Point. For Metal.

    Maintenance Length

    Round Shank

    3-Flat Shank

    Split

    Our basic drill bits are also the most versatile. Cut holes in a variety of metals, from the softest aluminum to the hardest steel.
    Maintenance Length—Shorter than jobbers' length, these bits are more rigid for less wobble when drilling hard material. Also known as mechanics’ 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.
    Shank
    Each
    Package
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Each
    Pkg.
    Qty.
    Pkg.
    Maintenance Length
     
    Gold Oxide
    1/16"
    		0.0625"
    		1 7/8"0.88"Round
    		1/16"Split
    		00000000000000————0
    5/64"
    		0.0781"
    		2"1"Round
    		5/64"Split
    		0000000000000————0
    3/32"
    		0.0938"
    		2 1/4"1.25"Round
    		3/32"Split
    		0000000000000————0
    7/64"
    		0.1094"
    		2 3/8"1.31"Round
    		7/64"Split
    		0000000000000————0
    1/8"
    		0.125"
    		2 1/2"1.44"Round
    		1/8"Split
    		0000000000000————0
    9/64"
    		0.1406"
    		2 5/8"1.56"Round
    		9/64"Split
    		0000000000000————0
    5/32"
    		0.1563"
    		2 3/4"1.69"Round
    		5/32"Split
    		0000000000000————0
    11/64"
    		0.1719"
    		2 7/8"1.81"Round
    		11/64"Split
    		0000000000000————0
    3/16"
    		0.1875"
    		3"1.75"Round/3-Flat
    		3/16"Split
    		000000000000120000000000000
    13/64"
    		0.2031"
    		3 1/8"1.81"Round/3-Flat
    		13/64"Split
    		000000000000120000000000000
    7/32"
    		0.2188"
    		3 1/4"1.87"Round/3-Flat
    		7/32"Split
    		000000000000120000000000000
    15/64"
    		0.2344"
    		3 3/8"1.93"Round/3-Flat
    		15/64"Split
    		000000000000120000000000000
    1/4"
    		0.25"
    		3 1/2"1.87"Round/3-Flat
    		1/4"Split
    		000000000000120000000000000
    17/64"
    		0.2656"
    		3 5/8"2"Round/3-Flat
    		17/64"Split
    		000000000000120000000000000
    9/32"
    		0.2813"
    		3 3/4"2.18"Round/3-Flat
    		9/32"Split
    		000000000000120000000000000
    19/64"
    		0.2969"
    		3 7/8"2.34"Round/3-Flat
    		19/64"Split
    		000000000000————0
    5/16"
    		0.3125"
    		4"2.46"Round/3-Flat
    		5/16"Split
    		00000000000060000000000000
    21/64"
    		0.3281"
    		4 1/8"2.48"Round/3-Flat
    		21/64"Split
    		00000000000060000000000000
    11/32"
    		0.3438"
    		4 1/8"2.5"Round/3-Flat
    		11/32"Split
    		00000000000060000000000000
    23/64"
    		0.3594"
    		4 1/4"2.56"Round/3-Flat
    		23/64"Split
    		00000000000060000000000000
    3/8"
    		0.375"
    		4 1/4"2.56"Round/3-Flat
    		3/8"Split
    		00000000000060000000000000
    25/64"
    		0.3906"
    		4 3/8"2.62"Round/3-Flat
    		25/64"Split
    		00000000000060000000000000
    13/32"
    		0.4063"
    		4 3/8"2.68"Round/3-Flat
    		13/32"Split
    		00000000000060000000000000
    27/64"
    		0.4219"
    		4 1/2"2.75"Round/3-Flat
    		27/64"Split
    		0000000000000————0
    7/16"
    		0.4375"
    		4 1/2"2.81"Round/3-Flat
    		7/16"Split
    		000000000000060000000000000
    29/64"
    		0.4531"
    		4 5/8"2.87"Round/3-Flat
    		29/64"Split
    		0000000000000————0
    15/32"
    		0.4688"
    		4 3/4"3"Round/3-Flat
    		15/32"Split
    		0000000000000————0
    31/64"
    		0.4844"
    		4 7/8"3.21"Round/3-Flat
    		31/64"Split
    		0000000000000————0
    1/2"
    		0.5"
    		5"3.34"Round/3-Flat
    		1/2"Split
    		000000000000060000000000000
     

    Left-Hand Cobalt Steel Drill Bits

    Image of Product. Side1 orientation. Drill Bits. Left-Hand Cobalt Steel Drill Bits, Maintenance Length, Round Shank.

    Maintenance Length

    Round Shank

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

    Split

    The flutes spiral in the opposite direction of other bits and stay sharp longer than high-speed steel. They’re 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.
    Maintenance Length—Shorter than jobbers' length, these bits are more rigid for less wobble when drilling hard material. Also known as mechanics’ 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.
    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
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Each
    Maintenance Length
     
    Titanium Nitride (TiN) Coated
    5/64"
    		0.0781"
    		2"0.88"Round
    		5/64"Split
    		000000000000
    7/64"
    		0.1094"
    		2 1/4"0.84"Round
    		7/64"Split
    		00000000000
    1/8"
    		0.125"
    		2 1/4"1.06"Round
    		1/8"Split
    		00000000000
    5/32"
    		0.1563"
    		2 5/8"1.27"Round
    		5/32"Split
    		00000000000
    3/16"
    		0.1875"
    		2 7/8"1.34"Round
    		3/16"Split
    		00000000000
    7/32"
    		0.2188"
    		3 1/8"1.42"Round
    		7/32"Split
    		00000000000
    1/4"
    		0.25"
    		3 3/8"1.63"Round
    		1/4"Split
    		00000000000
    5/16"
    		0.3125"
    		3 3/4"1.97"Round
    		5/16"Split
    		000000000000
    3/8"
    		0.375"
    		4 1/8"2.06"Round
    		3/8"Split
    		000000000000
     
    Titanium Aluminum Nitride (TiAlN) Coated
    5/64"
    		0.0781"
    		2"0.88"Round
    		5/64"Split
    		00000000000
    7/64"
    		0.1094"
    		2 1/4"0.84"Round
    		7/64"Split
    		00000000000
    1/8"
    		0.125"
    		2 1/4"1.06"Round
    		1/8"Split
    		00000000000
    5/32"
    		0.1563"
    		2 5/8"1.27"Round
    		5/32"Split
    		00000000000
    3/16"
    		0.1875"
    		2 7/8"1.34"Round
    		3/16"Split
    		00000000000
    7/32"
    		0.2188"
    		3 1/4"1.42"Round
    		7/32"Split
    		000000000000
    1/4"
    		0.25"
    		3 3/8"1.63"Round
    		1/4"Split
    		000000000000
    5/16"
    		0.3125"
    		3 3/4"1.97"Round
    		5/16"Split
    		000000000000
    3/8"
    		0.375"
    		4 1/8"2.06"Round
    		3/8"Split
    		000000000000
     
    Uncoated
    5/64"
    		0.0781"
    		2"0.88"Round
    		5/64"Split
    		00000000000
    7/64"
    		0.1094"
    		2 1/4"0.84"Round
    		7/64"Split
    		00000000000
    1/8"
    		0.125"
    		2 1/4"1.06"Round
    		1/8"Split
    		00000000000
    5/32"
    		0.1563"
    		2 5/8"1.27"Round
    		5/32"Split
    		00000000000
    3/16"
    		0.1875"
    		2 7/8"1.34"Round
    		3/16"Split
    		00000000000
    7/32"
    		0.2188"
    		3 1/8"1.42"Round
    		7/32"Split
    		00000000000
    1/4"
    		0.25"
    		3 3/8"1.63"Round
    		1/4"Split
    		00000000000
    9/32"
    		0.2813"
    		3 5/8"1.7"Round
    		9/32"Split
    		00000000000
    19/64"
    		0.2969"
    		3 5/8"1.87"Round
    		19/64"Split
    		000000000000
    5/16"
    		0.3125"
    		3 3/4"1.97"Round
    		5/16"Split
    		000000000000
    11/32"
    		0.3438"
    		4"1.98"Round
    		11/32"Split
    		000000000000
    3/8"
    		0.375"
    		4 1/8"2.06"Round
    		3/8"Split
    		000000000000
    13/32"
    		0.4063"
    		4 3/8"2.14"Round
    		13/32"Split
    		000000000000
    7/16"
    		0.4375"
    		4 5/8"2.22"Round
    		7/16"Split
    		000000000000
    15/32"
    		0.4688"
    		4 3/4"2.23"Round
    		15/32"Split
    		000000000000
    1/2"
    		0.5"
    		5"2.31"Round
    		1/2"Split
    		000000000000
     

    High-Speed Steel Drill Bit Sets

    Our basic drill bits are also the most versatile. Cut holes in a variety of metals, from the softest aluminum to the hardest steel.
    Maintenance LengthAbout Maintenance Length
    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bit Sets, Maintenance Length.
    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. Also known as mechanics’ 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.
    No. of
    Pieces
    Drill Bit Sizes Included
    System of
    Measurement
    Drill Bit Point
    Style
    Container
    Type
    Each
    Gold Oxide
    291/16"-1/2" (increments of 1/64")InchSplit Point
    		Plastic Case000000000000000
     

    Coolant-Fed Carbide Drill Bits

    Image of Product. Side1 orientation. Drill Bits. Coolant-Fed Carbide Drill Bits, Maintenance Length, Round Shank.

    Maintenance Length

    Round Shank

    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.
    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
    Maintenance Length
     
    Titanium Aluminum Nitride (TiAlN) Coated
    1/8"
    		0.125"
    		1 15/16"0.69"Round
    		1/8"Four Facet
    		00000000000000
    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
     

    Tap and Drill Bit Cases

    For Drill Bits
    Image of Product. Front orientation. Tap and Drill Bit Stands. Tap and Drill Bit Cases, For Drill Bits, Plastic.

    Plastic

    Store and organize drill bits so they stay in good working condition and don't go missing. These cases have individually marked holes for each size in your set.
    Plastic—Plastic cases have screw-on lids to block out moisture. Compared to steel cases, they're lighter, and they resist rust and dents. Clip them onto your belt to take with you on the job.
    For
    Drill Bit
    Overall
    Material
    No.
    of
    Size
    Dia.
    Ht.
    Features
    Each
    For Inch Drill Bits
     
    For Maintenance Length
    Plastic291/16" to 1/2" (Increments of 1/64")3 3/4"6 1/2"Belt Clip0000000000000
     
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