McMaster-Carr logo
    Filter by
    System of Measurement
    Drill Bit Size
    Industrial Info Compare
    Attribute Image
    Shank Size
    Attribute Image
    Length Class
    Industrial Info Compare
    Decimal Size Equivalent
    Drill Bit Point Type
    Industrial Info Compare
    Point Angle
    Industrial Info Snippet
    Attribute Image
    Maximum Drilling Depth
    Attribute Image
    Sold As
    Flute Direction
    Pipe Size
    Industrial Info Snippet
    Thread Type
    Number of Flutes
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Bit Style
    Flute Type
    Threads per Inch
    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)
    9 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
    Each
    Jobbers' Length
     
    Black Oxide
    45/64"
    		0.7031"
    		6"2.1"Reduced Round
    		1/2"Standard
    		0000000000000
    45/64"
    		0.7031"
    		6"2.1"Reduced Round/3-Flat
    		1/2"Split
    		000000000000
     
    Extended Length
     
    Black Oxide
    45/64"
    		0.7031"
    		12"9"Reduced Round
    		1/2"Standard
    		0000000000000
    45/64"
    		0.7031"
    		18"12"Reduced Round
    		1/2"Standard
    		0000000000000
     

    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, 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.
    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
    Each
    Jobbers' Length
     
    Black Oxide
    45/64"
    		0.7031"
    		9 1/2"4.57"Morse Taper
    		Morse 2Standard
    		00000000000000
     
    Extended Length
     
    Black Oxide
    45/64"
    		0.7031"
    		9 1/2"4.57"Round
    		45/64"Standard
    		00000000000000
     

    Reduced-Shank Cobalt Steel Drill Bits

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

    Jobbers' Length

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

    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.
    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
     
    Uncoated
    45/64"
    		0.7031"
    		6"2.1"Reduced Round
    		1/2"Split
    		0000000000000
     

    Pipe and Conduit Drill Taps

    Image of Product. Front orientation. Drill Taps. Pipe and Conduit Drill Taps.
    Drill and thread holes for pipe and conduit without switching tools. Made of uncoated high-speed steel, these tools are for use on most metal and plastic. Their right-hand spiral flutes keep chips clear by drawing them back toward the tap and out of the hole. With a square shank, they're compatible with tap wrenches and tap holders for drill presses and milling machines. All have a plug chamfer with 3-5 chamfered cutting threads, so they're suitable for start-to-finish tapping of through holes.
    Drill Bit
    Plug Chamfer
    Pipe
    Size
    Threads
    per In.
    Thread
    Lg.
    Overall
    Lg.
    Size
    Decimal Size
    Equiv.
    Point
    Angle
    Flute
    Type
    No. of
    Flutes
    Thread
    Type
    Each
    Uncoated High-Speed Steel
    1/2
    		141 3/8"4 3/8"45/64"
    		0.7031"118°Spiral4NPTF
    		00000000000000
     

    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
    45/64"0.7031"1 1/8"1 1/8"5/32"Steel00000000000000
     
    back to top