McMaster-Carr logo
    Filter by
    System of Measurement
    Drive Size
    Socket Shape
    Square Drive Size
    Attribute Image
    Bolt Clearance Type
    Wrench Style
    Overall Length
    Head Style
    Wrench Opening Shape
    Socket Style
    Drive Type
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Snippet
    Material
    Relative Length
    Wrench Type
    Performance
    Number of Pieces
    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)
    Help me decide (beta)
    5 Products

    6-Point Impact Sockets

    Achieve the best possible grip on hex fasteners and prevent rounding. These sockets are made to withstand the high torque and force of impact tools.
    Standard Clearance
    Image of Product. Front orientation. Sockets. 6-Point Impact Sockets, Standard Clearance.
    Image of Attribute. Front orientation. Contains Annotated. 6-Point Impact Sockets.
    Image of Specification. Front orientation. 6-Point Socket.

    6-Point

    Socket

    3/4" Square Drive—3/4", 1", and 1 1/2" square drive size sockets 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.
    Sockets
    Retaining Rings
    Clearance
    Dp.
    Drive Size,
    mm
    Nut
    Bolt
    Compatible Retaining
    Ring ID
    Material
    Overall
    Lg.
    Socket
    Shape
    Each
    Each
    3/4" Square Drive
    401 1/32"1 17/64"1 5/8"Black-Oxide Steel2 1/2"6-Point54175A710000005552A3800000
     

    12-Point Sockets

    The 12-point shape quickly positions on hex fasteners. These sockets are for hand-driven use only.
    Chrome-Plated Steel
    Image of Product. Front orientation. Sockets. 12-Point Sockets, Chrome-Plated Steel, Standard Clearance.
    Image of Specification. Front orientation. 12-Point Socket.

    Standard

    Clearance

    12-Point

    Socket

    Standard Clearance
    Drive Size,
    mm
    OD
    Socket
    Shape
    For Drive Style
    Overall
    Lg.
    Each
    3/4" Square Drive
    402 7/64"12-PointExternal 12-Point, External Hex
    		2 1/2"7312A83000000
     

    Tight-Clearance Open-End Wrench Sets

    Image of Product. Front orientation. Open-End Wrenches. Tight-Clearance Open-End Wrench Sets.
    Image of Attribute. Front orientation. Contains Annotated. Tight-Clearance Open-End Wrench Sets.
    Image of Specification. Front orientation. ZoomedIn view. Contains Border. Round Opening. Tight-Clearance Open-End Wrench Sets.

    Round

    Opening

    Twist various sizes of thin fasteners in cramped spots where other wrenches are too bulky. With a head and handle about half as thick as standard wrenches, it's easier to grip nuts found in electrical enclosures and small machinery. These wrenches are ASME certified—they handle more torque than run-of-the-mill alternatives and precisely fit fasteners so they don't round them off. Drop forged for added strength, they will be part of your toolbox for life. Also known as check nut or service wrenches.
    Round Opening—The rounded edges spread force evenly to prevent stripping your fasteners. Use them on hex-head fasteners.
    Chrome-Plated Steel—The most popular finish, these wrenches won't rust or chip. Although they withstand moisture better than black oxide, they don't hold up to harsh chemicals as well as stainless steel.
    Dull—With a textured finish, these wrenches won't slip out of your hands, even when greasy or oily.
    No. of
    Pieces
    Sizes Included
    Overall Lg.
    Opening
    Angle
    Appearance
    Container Type
    Specs. Met
    Each
    Round Opening
     
    Chrome-Plated Steel
    1119 mm
    21 mm
    22 mm
    24 mm
    27 mm
    30 mm
    32 mm
    36 mm
    37 mm
    38 mm
    40 mm    		6 1/2" to 8"30°DullFabric Roll-Up PouchASME B107.1005746A210000000
     

    Tight-Clearance Open-End Wrenches

    Image of Product. Front orientation. Open-End Wrenches. Tight-Clearance Open-End Wrenches.
    Image of Attribute. Front orientation. Contains Annotated. Tight-Clearance Open-End Wrenches.
    Image of Specification. Front orientation. ZoomedIn view. Contains Border. Round Opening. Tight-Clearance Open-End Wrenches.

    Round

    Opening

    Twist thin fasteners in cramped spots where other wrenches are too bulky. With a head and handle about half as thick as standard wrenches, it's easier to grip nuts found in electrical enclosures and small machinery. These wrenches are ASME certified—they handle more torque than run-of-the-mill alternatives and precisely fit fasteners so they don't round them off. Drop forged for added strength, they will be part of your toolbox for life. Also known as check nut or service wrenches.
    Round Opening—The rounded edges spread force evenly to prevent stripping your fasteners. Use them on hex-head fasteners.
    Chrome-Plated Steel—The most popular finish, these wrenches won't rust or chip. Although they withstand moisture better than black oxide, they don't hold up to harsh chemicals as well as stainless steel.
    Dull—With a textured finish, these wrenches won't slip out of your hands, even when greasy or oily.
    Drive Size,
    mm
    Overall
    Lg.
    Opening
    Angle
    Head
    Thk.
    Appearance
    Specs. Met
    Each
    Round Opening
     
    Chrome-Plated Steel
    408"30°1/4"DullASME B107.1005746A18000000
     
    back to top