McMaster-Carr logo
    Filter by
    System of Measurement
    Square Drive Size
    Attribute Image
    Drive Style
    Industrial Info Snippet
    Material
    Tip Style
    Socket Style
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Socket Retainer Style
    Number of Pieces
    Hex Shank Size
    Bit Replaceable
    Color
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    61 Products

    Socket Extensions

    Image of Product. Front orientation. Socket Extensions. Socket Extensions.
    Attach these extensions to your socket for a longer reach. Use with hand-drive tools only.
    Chrome-Plated Steel—Chrome-plated extensions have a smooth, shiny surface that resists corrosion and is easy to clean.
    Overall
    Lg.
    Each
    Chrome-Plated Steel
     
    1/4" Square Drive
    4"93077A160000000
     
    3/4" Square Drive
    4"5524A2400000
     

    Continuous-Use Socket Extensions

    Image of Product. Front orientation. Socket Extensions. Continuous-Use Socket Extensions.
    First developed for aerospace and automotive assembly processes, these extensions will stand up to your high-volume production and assembly lines. They're hardened to resist wear yet have enough flex to withstand the high torque and force of impact tools without cracking. Use them to lengthen the reach of your impact socket.
    3/4" Square Drive—3/4" square drive extensions require a retaining ring when used with impact tools that have a hole- or ring-and-hole style socket retainer. They work without a retaining ring when used with impact wrenches that have a pin-style socket retainer.
    Extensions
    Retaining Rings
    Overall
    Lg.
    Compatible Retaining
    Ring ID
    Material
    Each
    Each
    1/4" Square Drive
    4"Steel7168N12000000———0
     
    3/8" Square Drive
    4"Steel7168N1900000———0
     
    1/2" Square Drive
    4"Steel7168N2600000———0
     
    3/4" Square Drive
    4"1 1/4"Steel7168N320000005552A5200000
     

    Socket Extension Sets

    Image of Product. Front orientation. Socket Extensions. Socket Extension Sets.
    Keep common extension lengths on hand to reach a variety of spots—just attach them to your socket. Use with hand-drive tools only.
    No. of
    Pieces
    Includes
    Material
    Container
    Type
    Each
    Made in the U.S.
     
    1/4" Square Drive
    51/4" Square Drive Socket Extensions: 2" Lg., 4" Lg., 6" Lg., 10" Lg., 24" Lg.Chrome-Plated SteelPouch7166N17000000
     

    Impact Socket Extension Sets

    Image of Product. Front orientation. Socket Extensions. Impact Socket Extension Sets.
    Reach a variety of spots by keeping common extension lengths on hand. To withstand the high torque and force of impact tools without fracturing, these extensions are thicker and flex more than extensions for manual drivers.
    No. of
    Pieces
    Overall
    Lg.
    Material
    Each
    1/4" Square Drive
    32", 4", 6"Black-Oxide Steel7967N13000000
     

    Impact Socket Extensions

    Image of Product. Front orientation. Socket Extensions. Impact Socket Extensions.
    Attach to your socket for a longer reach. These extensions are made to withstand the high torque and force of impact tools.
    Overall
    Lg.
    Material
    Each
    1/4" Square Drive
    4"Black-Oxide Steel7176N2900000
     

    Long-Reach Impact Hex Bit Sockets

    Image of Product. Bottom orientation. Bit Sockets. Long-Reach Impact Hex Bit Sockets .
    Image of Specification. Front orientation. For Hex Drives.

    For

    Hex

    Drives

    Extra-long bits help you access hard-to-reach fasteners. These sockets are sturdier and have more give than manual-drive sockets, so they'll withstand the high torque and force of impact tools.
    3/8" Square Drive—Sockets that are 3/8" square drive require a locking retainer. Use with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring style socket retainer.
    Bit Sockets
    Retaining Rings
    Drive
    Size
    Overall
    Lg.
    Compatible Retaining
    Ring ID
    Material
    Bit
    Replaceable
    For Drive
    Style
    Each
    Pkg.
    Qty.
    Pkg.
    1/4" Square Drive
    1/8"4"Black Oil-Coated SteelNoHex
    6626N11000000———0
    5/32"4"Black Oil-Coated SteelNoHex
    6626N1200000———0
    3/16"4"Black Oil-Coated SteelNoHex
    6626N1300000———0
    7/32"4"Black Oil-Coated SteelNoHex
    6626N1400000———0
    1/4"4"Black Oil-Coated SteelNoHex
    6626N1500000———0
    5/16"4"Black Oil-Coated SteelNoHex
    6626N1600000———0
    3/8"4"Black Oil-Coated SteelNoHex
    6626N1700000———0
    2 mm4"Black Oil-Coated SteelNoHex
    6626N1800000———0
    2.5 mm4"Black Oil-Coated SteelNoHex
    6626N1900000———0
    3 mm4"Black Oil-Coated SteelNoHex
    6626N2100000———0
    4 mm4"Black Oil-Coated SteelNoHex
    6626N2200000———0
    5 mm4"Black Oil-Coated SteelNoHex
    6626N2300000———0
    6 mm4"Black Oil-Coated SteelNoHex
    6626N2400000———0
    7 mm4"Black Oil-Coated SteelNoHex
    6626N2500000———0
    8 mm4"Black Oil-Coated SteelNoHex
    6626N2600000———0
    10 mm4"Black Oil-Coated SteelNoHex
    6626N2700000———0
     
    3/8" Square Drive
    3/16"4"5/8"Black Oil-Coated SteelNoHex
    6626N460000056439N1100000
    7/32"4"5/8"Black Oil-Coated SteelNoHex
    6626N470000056439N110000
    1/4"4"5/8"Black Oil-Coated SteelNoHex
    6626N480000056439N110000
    5/16"4"5/8"Black Oil-Coated SteelNoHex
    6626N490000056439N110000
    3/8"4"5/8"Black Oil-Coated SteelNoHex
    6626N510000056439N110000
    1/2"4"5/8"Black Oil-Coated SteelNoHex
    6626N520000056439N110000
    4 mm4"5/8"Black Oil-Coated SteelNoHex
    6626N530000056439N110000
    5 mm4"5/8"Black Oil-Coated SteelNoHex
    6626N540000056439N110000
    6 mm4"5/8"Black Oil-Coated SteelNoHex
    6626N550000056439N110000
    8 mm4"5/8"Black Oil-Coated SteelNoHex
    6626N560000056439N110000
    10 mm4"5/8"Black Oil-Coated SteelNoHex
    6626N570000056439N110000
     

    Square Drive Adapters for Power Tools

    Image of Product. Front orientation. Socket Adapters. Square Drive Adapters for Power Tools, Pin Socket Retainer.

    Pin Socket

    Retainer

    Attach your square-drive sockets to drills, powered screwdrivers, and other tools that accept a hex shank. Not for use with impact tools.
    Pin Socket Retainer—Adapters with a pin style retainer provide a more secure hold than ball detent style because you have to depress the pin to attach or remove the socket. Also called positive locking.
    Hex Shank
    Size
    Overall
    Lg.
    Material
    Socket Retainer
    Style
    Each
     
    1/4" Square Drive
    1/4"4"Black-Oxide SteelPin7236A4100000
     
    3/8" Square Drive
    1/4"4"Black-Oxide SteelPin5553A650000
     

    Impact Hex Bit Socket Sets

    Image of Product. Front orientation. Bit Sockets. Impact Hex Bit Socket Sets, Plastic Case.
    Image of Product. Front orientation. Bit Sockets. Impact Hex Bit Socket Sets, Metal Clip Rail.
    Image of Specification. Front orientation. For Hex Drives.

    Plastic Case

    Metal Clip Rail

    For

    Hex

    Drives

    Use these sockets as an alternative to a screwdriver or L-key. They are made to withstand the high torque and force of impact tools.
    No. of
    Pieces
    Sockets Included
    Material
    Container Type
    For Drive
    Style
    Each
    1/2" Square Drive
    136 mm, 7 mm, 8 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm (4" O'all Lg.)Black-Oxide SteelMetal Clip RailHex
    6040A280000000
     
    1" Square Drive
    63/4", 7/8", 1", 1 1/8", 1 1/4", 1 3/8", (4" O'all Lg.)Black-Oxide SteelPlastic CaseHex
    6040A32000000
    614 mm, 17 mm, 19 mm, 22 mm, 24 mm, 27 mm (4" O'all Lg.)Black-Oxide SteelPlastic CaseHex
    6040A33000000
     

    Impact Square Drive Adapters for Power Tools

    Image of Product. Front orientation. Socket Adapters. Impact Square Drive Adapters for Power Tools, Ball Detent Socket Retainer.

    Ball Detent Socket

    Retainer

    Attach your impact square-drive sockets to power drills, impact drivers, and other tools that accept a hex shank. These adapters are made to withstand the high torque and force of impact tools.
    Ball Detent Socket Retainer—Adapters with ball detent, the standard retainer style, have a spring-loaded ball that holds the socket in place, allowing you to slide it on and off quickly.
    Hex Shank
    Size
    Overall
    Lg.
    Material
    Color
    Socket Retainer
    Style
    Each
     
    1/4" Square Drive
    1/4"4"Oil-Coated SteelBlackBall Detent8533N102000000
     
    3/8" Square Drive
    1/4"4"Oil-Coated SteelBlackBall Detent8533N10500000
     
    1/2" Square Drive
    1/4"4"Oil-Coated SteelBlackBall Detent8533N10800000
     

    Hex Bit Sockets

    Image of Product. Front orientation. Bit Sockets. Hex Bit Sockets .
    Image of Specification. Front orientation. For Hex Drives.

    For

    Hex

    Drives

    Drive
    Size
    Overall
    Lg.
    Material
    Bit
    Replaceable
    For Drive
    Style
    Each
    1/2" Square Drive
    5/8"4"Chrome-Plated SteelNoHex
    5494A86000000
    3/4"4"Chrome-Plated SteelNoHex
    5494A6900000
    17 mm4"Chrome-Plated SteelNoHex
    5571A7300000
    18 mm4"Chrome-Plated SteelNoHex
    5571A1500000
    19 mm4"Chrome-Plated SteelNoHex
    5571A7900000
     

    Long-Reach Impact Hex Bit Socket Sets

    Image of Product. Front orientation. Bit Sockets. Long-Reach Impact Hex Bit Socket Sets .
    Image of Specification. Front orientation. For Hex Drives.

    For

    Hex

    Drives

    Extra-long bits help you access hard-to-reach fasteners. These sockets are sturdier and have more give than manual-drive sockets, so they'll withstand the high torque and force of impact tools.
    No. of
    Pieces
    Sockets Included
    Overall
    Lg.
    Container
    Type
    For Drive
    Style
    Each
    3/8" Square Drive—Black-Oxide Steel
    73/16", 7/32", 1/4", 5/16", 3/8", 7/16", 1/2", (4" O'all Lg.)4"Plastic CaseHex
    6040A230000000
    74 mm, 5 mm, 6 mm, 7 mm, 8 mm, 10 mm, 12 mm (4" O'all Lg.)4"Plastic CaseHex
    6040A24000000
     

    Morse Taper Shank Size Adapters

    Image of Product. Front orientation. Contains Annotated. Machine Taper Shank Adapters. Morse Taper Shank Size Adapters, Adapters.

    Adapters

    Image of Attribute. Front orientation. CrossSection view. Contains Annotated. Machine Taper Shank Adapters. Morse Taper Shank Size Adapters.
    Change your Morse taper machine spindles and lathe tailstocks to mount tools with different Morse taper shank sizes. These adapters are precision ground for accuracy.
    Slide your tool into these adapters and then press firmly to seat it. To separate them, use a Morse taper removal tool.
    Adapters—Adapters are great when all you need is a simple size change. Their compact design makes them more rigid than extension adapters, so they vibrate less and your tools last longer. Also known as drill sleeves.
    Nylon—Nylon adapters prevent bits from breaking under high torque and sudden jolts. Their sleeve is designed to break before your bit is damaged. If your spindle is scratched or slightly worn, the sleeve conforms to those imperfections to keep your bit centered.
    Outside Machine
    Taper No.
    Inside Machine
    Taper No.
    Overall
    Lg.
    Each
    Adapters
     
    Nylon
    Morse 3Morse 24"2976A6400000
     

    Impact Quick-Change Socket Adapters

    Image of Product. Front orientation. Socket Adapters. Impact Quick-Change Socket Adapters.
    Pull the collar to quickly attach and remove sockets. Attach to an impact wrench that has a pin-style socket retainer, or use a compatible socket retaining ring and attach to tools that have a hole- or hole-and-ring style socket retainer. These adapters are made to withstand the high torque and force of impact tools.
    Socket Adapters
    Retaining Rings
    Overall
    Lg.
    Compatible Retaining
    Ring ID
    Material
    Each
    Each
     
    1" Square Drive
    4"2 1/8"Black-Oxide Steel5550A16600000005550A6200000
     

    Impact Hex Bit Sockets

    Image of Product. Front orientation. Bit Sockets. Impact Hex Bit Sockets .
    Image of Specification. Front orientation. For Hex Drives.

    For

    Hex

    Drives

    These sockets are made to withstand the high torque and force of impact tools.
    Compatible Retaining Ring ID—Sockets that list a compatible retaining ring ID require a locking retainer. Use with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring style socket retainer.
    Bit Sockets
    Replacement
    Socket Bits
    Retaining Rings
    Drive
    Size
    Overall
    Lg.
    Compatible Retaining
    Ring ID
    Material
    Bit
    Replaceable
    For Drive
    Style
    Each
    Each
    Each
    1/2" Square Drive
    5/8"4"Black-Oxide SteelNoHex
    54705A57000000———0———0
    17 mm4"Black-Oxide SteelNoHex
    55105A6600000———0———0
     
    1" Square Drive
    5/8"4"1 3/4"Black-Oxide SteelYesHex
    5550A161000005550A2210000005550A6800000
     
    back to top