McMaster-Carr logo
    Filter by
    System of Measurement
    Shank Type
    Shank Size
    Attribute Image
    Drill Bit Point Type
    Industrial Info Compare
    Bit Style
    Point Angle
    Industrial Info Snippet
    Attribute Image
    Flute Direction
    Number of Flutes
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    23 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.
    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Short Length, Round Shank.

    Jobbers' Length

    Round Shank

    Short Length

    Round Shank

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Extended Length, Round Shank.
    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    Extended Length

    Round Shank

    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.
    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.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Each
    Jobbers' Length
     
    Black Oxide
    11/16"
    		0.6875"
    		7 5/8"4.59"Round
    		11/16"Standard
    		2931A56000000
     
    Titanium Nitride (TiN) Coated
    11/16"
    		0.6875"
    		7 5/8"4.59"Round
    		11/16"Standard
    		3022A7500000
     
    Uncoated
    11/16"
    		0.6875"
    		7 5/8"4.59"Round
    		11/16"Standard
    		8870A5800000
     
    Short Length
     
    Uncoated
    11/16"
    		0.6875"
    		4 5/8"1.84"Round
    		11/16"Standard
    		8947A25300000
     
    Extended Length
     
    Black Oxide
    11/16"
    		0.6875"
    		9 1/4"4.34"Round
    		11/16"Standard
    		29315A18100000
    11/16"
    		0.6875"
    		12"7.62"Round
    		11/16"Standard
    		2939A5100000
    11/16"
    		0.6875"
    		18"11.62"Round
    		11/16"Standard
    		2955A44000000
     
    Uncoated
    11/16"
    		0.6875"
    		9 1/4"5.38"Round
    		11/16"Standard
    		2939A9100000
     

    Cobalt Steel Drill Bits

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

    Jobbers' Length

    Round Shank

    Extended Length

    Round Shank

    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.
    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.
    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
    Each
    Jobbers' Length
     
    Titanium Nitride (TiN) Coated
    11/16"
    		0.6875"
    		7 5/8"5.63"Round
    		11/16"Split
    		27995A5550000000
     
    Uncoated
    11/16"
    		0.6875"
    		7 1/8"4.6"Round
    		11/16"Split
    		3069A93000000
     
    Extended Length
     
    Uncoated
    11/16"
    		0.6875"
    		9 1/4"4"Round
    		11/16"Split
    		3063A155000000
    11/16"
    		0.6875"
    		12"9"Round
    		11/16"Split
    		3168A42000000
     

    Drill Bits for Paper and Fabric

    Image of Product. Front orientation. Drill Bits. Drill Bits for Paper and Fabric.
    A razor-sharp cutting edge makes clean holes through stacks of paper, cardboard, and fabric. These bits are often used for binding documents and sample swatches. They are standard Style A for use with Challenge and Lassco paper-drilling machines.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Each
    Core Bit
     
    Uncoated
    1/8"
    		0.125"
    		3 1/8"1"Round
    		11/16"3164A21000000
    3/16"
    		0.1875"
    		3 1/8"1 3/4"Round
    		11/16"3164A2300000
    1/4"
    		0.25"
    		3 1/8"2"Round
    		11/16"3164A2500000
    5/16"
    		0.3125"
    		3 1/8"2"Round
    		11/16"3164A2700000
    3/8"
    		0.375"
    		3 1/8"2"Round
    		11/16"3164A2900000
    7/16"
    		0.4375"
    		3 1/8"2"Round
    		11/16"3164A3100000
    1/2"
    		0.5"
    		3 1/8"2"Round
    		11/16"3164A3300000
     

    Carbide-Tipped Drill Bits

    Image of Product. Front orientation. Drill Bits. Carbide-Tipped Drill Bits, Short Length, Round Shank.

    Short Length

    Round Shank

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

    Standard

    Split

    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.
    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.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Each
    Short Length
     
    Uncoated
    11/16"
    		0.6875"
    		4 5/8"2.04"Round
    		11/16"Standard
    		28805A244000000
    11/16"
    		0.6875"
    		4 5/8"2.04"Round
    		11/16"Split
    		2750A4200000
     
    Extended Length
     
    Uncoated
    11/16"
    		0.6875"
    		9 1/4"4.34"Round
    		11/16"Standard
    		29465A5100000
     

    Hex-Shank Tap and Drill Bit Sets

    Image of Product. Front orientation. Tap and Drill Bit Sets. Hex-Shank Tap and Drill Bit Sets.
    Drill and tap a variety of hole sizes. These taps and drill bits are for use on metal and plastic.
    Uncoated High-Speed Steel Tap—Uncoated high-speed steel taps have a longer tool life than carbon steel. They are strong enough for most jobs but don’t last as long as other high-speed steel taps. Use them for small-scale jobs.
    Plug Chamfer—Plug-chamfer taps are a versatile choice for most tapping applications. With 3-5 chamfered cutting threads, they require moderate torque and are often used for start-to-finish tapping of through holes and closed-end holes. However, they do not start threads as easily as taper chamfers. When using them to tap closed-end holes, be sure to leave sufficient space at the bottom for chips to accumulate.
    Black-Oxide High-Speed Steel Drill Bit—Black-oxide high-speed steel drill bits have a longer tool life than carbon steel. They cut with less friction than uncoated drill bits.
    No. of
    Pieces
    Chamfer
    Type
    Tap Sizes
    Included
    Overall Lg.
    Thread
    Type
    No. of
    Flutes
    Pitch Dia.
    Limit
    Drill Bit Sizes
    Included
    Drill Bit Material
    Container
    Type
    Each
    Uncoated High-Speed Steel Tap
    36Plug1 each of sizes:
    6-32
    6-40
    8-32
    8-36
    10-24
    10-32
    12-24
    12-28
    1/4"-20
    1/4"-28
    5/16"-18
    5/16"-24
    3/8"-24
    3/8"-16
    7/16"-14
    7/16"-20
    1/2"-13
    1/2"-20    		2"
    2 1/8"
    2 5/32"
    2 11/64"
    2 3/8"
    2 1/2"
    2 15/16"
    3 5/32"
    3 7/32"    		UNC, UNF
    		3, 4H2, H31 each of sizes:
    25/64"
    27/64"
    29/64"
    5/16"
    36 ga.
    33 ga.
    25 ga.
    21 ga.
    16 ga.
    15 ga.
    7 ga.
    3 ga.
    F
    I
    Q
    U
    2 each of sizes:
    29 ga.    		Black-Oxide High-Speed SteelMetal Case2727A190000000
     
    back to top