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    8 Products
    About Drill Bits
    industrial info icon

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

    Material

    Material

    Flute Direction

    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.
    Jobbers' LengthAbout Jobbers' Length
    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bit Sets, Jobbers' Length.
    Image of Specification. Split. Front orientation. Contains Border. Split Point. For Metal.

    Split

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

    Standard

    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.
    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 and titanium.
    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—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.
    No. of
    Pieces
    Drill Bit Sizes Included
    System of
    Measurement
    Drill Bit Point
    Style
    Specs. Met
    Mil. Spec.
    Container
    Type
    Mfr.
    Each
    Black Oxide
    211/16"-3/8" (increments of 1/64")InchSplit Point
    		—NAS907 Type BMetal CaseChicago-Latrobe8907A13000000
     
    Titanium Aluminum Nitride (TiAlN) Coated
    211/16"-3/8" (increments of 1/64")InchSplit Point
    		—NAS907 Type BMetal CaseChicago-Latrobe2572N13000000
     
    Titanium Nitride (TiN) Coated
    211/16"-3/8" (increments of 1/64")InchSplit Point
    		—NAS907 Type BMetal CaseChicago-Latrobe31555A53000000
     
    Uncoated
    211/16"-3/8" (increments of 1/64")InchStandard Point
    		ASME B94.11M, DIN 338—Metal CaseChicago-Latrobe8875A2500000
     

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

    Split

    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.
    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
    Mil. Spec.
    Container
    Type
    Mfr.
    Each
    Titanium Nitride (TiN) Coated
    211/16"-3/8" (increments of 1/64")InchSplit Point
    		NAS907 Type JMetal CaseChicago-Latrobe28115A720000000
     
    Uncoated
    211/16"-3/8" (increments of 1/64")InchSplit Point
    		NAS907 Type JMetal CaseViking Norseman Drill8856A56000000
     

    Left-Hand High-Speed Steel 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 is the versatile choice for drilling most metals.
    Jobbers' LengthAbout Jobbers' Length
    Image of Product. Front orientation. Drill Bits. Left-Hand High-Speed Steel Drill Bit Sets, Jobbers' Length.
    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    Standard

    These 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.
    No. of
    Pieces
    Drill Bit Sizes Included
    System of
    Measurement
    Drill Bit Point
    Style
    Container
    Type
    Mfr.
    Each
    Uncoated
    211/16"-3/8" (increments of 1/64")InchStandard Point
    		Metal CaseRepublic Drill29505A5960000000
     

    Carbide Drill Bit Sets

    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' LengthAbout Jobbers' Length
    Image of Product. Front orientation. Drill Bits. Carbide Drill Bit Sets, Jobbers' Length.
    These bits have the balance of rigidity and length needed for most applications.
    Uncoated—Excellent for a range of materials but won't last as long as coated bits.
    No. of
    Pieces
    Drill Bit Sizes Included
    System of
    Measurement
    Drill Bit Point
    Style
    Container
    Type
    Mfr.
    Each
    Uncoated
    211/16"-3/8" (increments of 1/64")InchFour-Facet Point
    		Metal CaseUltra Tool29325A220000000
     
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