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    14 Products
    About Drill Bits
    industrial info icon

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

    Reduced-Shank High-Speed Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. Reduced-Shank High-Speed Steel Drill Bits, Jobbers' Length.

    Jobbers' Length

    Image of Product. Front orientation. Drill Bits. Reduced-Shank High-Speed Steel Drill Bits, Extended Length.

    Extended Length

    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

    Cut large holes with drill presses and portable drills that have a standard-size chuck. The shank on these bits has a smaller diameter than the cutting tip. High-speed steel is good for general purpose drilling in most metals. Also known as Silver and Deming bits.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Extended Length—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.
    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.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Jobbers' Length
     
    Black Oxide
    23/32"
    0.7188"
    6"2.1"Reduced Round
    1/2"Standard
    Chicago-Latrobe2933A32000000
    23/32"
    0.7188"
    6"2.1"Reduced Round/3-Flat
    1/2"Split
    Viking Norseman Drill2905A2500000
     
    Extended Length
     
    Black Oxide
    23/32"
    0.7188"
    12"9"Reduced Round
    1/2"Standard
    Republic Drill2464A22000000
    23/32"
    0.7188"
    18"12"Reduced Round
    1/2"Standard
    Republic Drill2464A52000000
     

    High-Speed Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Jobbers' Length, Morse Taper Shank.

    Jobbers' Length

    Morse Taper Shank

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Short Length, Round Shank.

    Short Length

    Round Shank

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Extended Length, Round Shank.

    Extended 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.
    Short Length—The most rigid bits for drilling the straightest holes.
    Extended Length—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.
    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
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Jobbers' Length
     
    Black Oxide
    23/32"
    0.7188"
    9 1/2"4.54"Morse Taper
    Morse 2Standard
    Chicago-Latrobe2929A394000000
     
    Short Length
     
    Uncoated
    23/32"
    0.7188"
    4 3/4"1.92"Round
    23/32"Standard
    Chicago-Latrobe8947A25400000
     
    Extended Length
     
    Black Oxide
    23/32"
    0.7188"
    9 1/2"4.54"Round
    23/32"Standard
    Chicago-Latrobe29315A18300000
    23/32"
    0.7188"
    12"7.56"Round
    23/32"Standard
    Dormer Pramet2939A5300000
     

    Reduced-Shank Carbide-Tipped Drill Bits

    Image of Product. Front orientation. Drill Bits. Reduced-Shank Carbide-Tipped Drill Bits, Jobbers' Length.

    Jobbers' Length

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

    Standard

    Our hardest reduced-shank bits, these stay sharp at high temperatures and faster speeds. The shank is smaller than the cutting tip to make large holes with drill presses and portable drills that have a standard-size chuck. They offer the best performance on hard and abrasive materials, such as titanium. Also known as Silver and Deming bits.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Jobbers' Length
     
    Uncoated
    23/32"
    0.7188"
    6"2.1"Reduced Round
    1/2"Standard
    Rock River Tool8871A180000000
     

    Reduced-Shank Cobalt Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. Reduced-Shank Cobalt Steel Drill Bits, Jobbers' Length.
    Image of Specification. Split. Front orientation. Contains Border. Split Point. For Metal.

    Jobbers' Length

    Split

    More wear resistant than high-speed steel, these bits cut large holes with tools that have a standard-size chuck. The shank has a smaller diameter than the cutting tip and fits drill presses and portable drills. 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. Also known as Silver and Deming bits.
    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.
    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
    Mfr.
    Each
    Jobbers' Length
     
    Titanium Nitride (TiN) Coated
    23/32"
    0.7188"
    6"3.13"Reduced Round
    1/2"Split
    Chicago-Latrobe3322A250000000
     
    Uncoated
    23/32"
    0.7188"
    6"2.1"Reduced Round
    1/2"Split
    Chicago-Latrobe8939A2200000
     

    Carbide-Tipped Drill Bits

    Image of Product. Front orientation. Drill Bits. 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

    Performance similar to solid carbide but at a lower price point. Like carbide bits, these are stronger than cobalt and high-speed steel and maintain their sharp edges when drilling abrasive material. However, when drilling tough metals like iron and hardened steel, upgrade to carbide for longer life.
    Extended Length—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
    Mfr.
    Each
    Extended Length
     
    Uncoated
    23/32"
    0.7188"
    9 1/2"4.55"Round
    23/32"Standard
    ICS29465A53000000
     

    Depth-Limiting Drill Stops

    Image of ProductInUse. Front orientation. Drill Stops.
    Ensure identical hole depths every time. Position the collar on your bit and tighten the set screw.
    For Drill
    Bit Size
    For Drill Bit Size
    Decimal Equiv.
    Overall
    Lg.
    OD
    Hex Key Size
    for Set Screw
    Material
    Each
    For Inch Drill Bits
    23/32"0.7188"1 1/8"1 1/8"5/32"Steel
    8865A248000000
     

    Tight-Tolerance Water-Hardening W1 Tool Steel Rods

    Image of Product. Front orientation. Steel. Tight-Tolerance Water-Hardening W1 Tool Steel Rods.
    Ready for turning in your lathe, these rods are precision ground and held to strict diameter and straightness tolerances. Also known as drill rod. With far less alloy content than other tool steel, W1 is the most machinable we offer. These rods are often used to make hammers, files, and reamers—tools that don't require the dimensional stability of A2 or O1. These rods are also decarb-free, which means any surface flaws created during the manufacturing process have been removed. This makes them even more machinable and leads to better results from heat treating or finishing. Heat treat the surface for extra wear resistance. Or, quench this steel in water to boost its hardness and strength, giving it a sharper, more durable edge for small tools.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Dia.
    Dia. Tolerance
    Drill Bit
    Size
    Fabrication
    Heat
    Treatment
    Yield Strength,
    psi
    Mechanical
    Finish
    Hardness
    Max. Hardness After
    Heat Treatment
    Specs.
    Met
    1 ft.
    Long
    3 ft.
    Long
    6 ft.
    Long
    0.7188"-0.001" to 0.001"23/32"
    Hot RolledAnnealed50,000Precision GroundRockwell B95 (Medium)Rockwell C65ASTM A6868890K17000000000000000000
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