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    12 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, Jobbers' Length, Round Shank.

    Jobbers' Length

    Round Shank

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

    Standard

    Our basic drill bits are also the most versatile. Cut holes in a variety of metals, from the softest aluminum to the hardest steel.
    Jobbers' Length—These 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.
    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.
    Shank
    Each
    Package
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Each
    Pkg.
    Qty.
    Pkg.
    Jobbers' Length
     
    Black Oxide
    1/64"
    		0.0156"
    		3/4"0.16"Round
    		1/64"Standard
    		2901A10700000122901A501000000
     
    Uncoated
    1/64"
    		0.0156"
    		3/4"0.15"Round
    		1/64"Standard
    		8870A110000128870A11100000
     

    Carbide Drill Bits

    Image of Product. Front orientation. Drill Bits. Carbide Drill Bits, Jobbers' Length, Round Shank.

    Jobbers' Length

    Round Shank

    The hardest and most wear-resistant drill bits you can buy. Carbide bits stay sharp at high temperatures and faster speeds for the best performance on hard and difficult-to-machine materials. They last 10 to 20 times longer than their closest alternative, cobalt steel. Carbide can be brittle, however, so these bits require a rigid machine tool holder to prevent breakage and should not be used in hand drilling applications.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated bits, especially on materials like hardened steel, iron, and stainless steel.
    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.
    Uncoated—Excellent for a range of materials but won't last as long as coated bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit Point
    Type
    Each
    Jobbers' Length
     
    Titanium Nitride (TiN) Coated
    1/64"
    		0.0156"
    		1 1/4"0.2"Round
    		1/64"Four Facet
    		27515A31000000
     
    Titanium Aluminum Nitride (TiAlN) Coated
    1/64"
    		0.0156"
    		1 1/4"0.2"Round
    		1/64"Four Facet
    		8879A7400000
     
    Uncoated
    1/64"
    		0.0156"
    		1 1/4"0.2"Round
    		1/64"Four Facet
    		2956A5700000
     

    Cobalt Steel Drill Bits

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

    Jobbers' Length

    Round Shank

    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

    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.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    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
    Jobbers' Length
     
    Titanium Nitride (TiN) Coated
    1/64"
    		0.0156"
    		3/4"0.19"Round
    		1/64"Split
    		27995A81100000
     
    Titanium Aluminum Nitride (TiAlN) Coated
    1/64"
    		0.0156"
    		3/4"0.17"Round
    		1/64"Standard
    		2753A12100000
     
    Uncoated
    1/64"
    		0.0156"
    		3/4"0.16"Round
    		1/64"Standard
    		3069A1080000
     

    Extensions for Round-Shank Drill Bits

    Image of Product. Front orientation. Drill Bit Extensions. Extensions for Round-Shank Drill Bits, One-Piece Extensions.

    One-Piece Extensions

    Attach to the shank of a drill bit to extend its reach.
    One-Piece Extensions—To attach one-piece extensions, insert a drill bit into the extension and tighten the knurled collar.
    For Drill Bit
    Size
    Size Decimal
    Equiv.
    Shank
    Size
    Shank
    Size
    Overall
    Lg.
    OD
    Material
    Each
    For Inch Drill Bits
     
    One-Piece Extensions
    1/64"0.0156"1/64"1/8"4"1/8"Steel2864A113000000
    1/64"0.0156"1/64"3/16"4"3/16"Steel2864A21300000
     
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