McMaster-Carr logo
    Filter by
    System of Measurement
    Drive Size
    Head Style
    Wrench Opening Shape
    Material
    Number of Heads
    Performance
    Sold As
    Appearance
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    For Use With
    Wrench Type
    Square Drive Size
    Attribute Image
    Ratcheting
    Relative Length
    Opening Angle
    Attribute Image
    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)
    15 Products

    Combination Wrenches

    Image of Product. Front orientation. Combination Wrenches. Combination Wrenches.
    Image of Attribute. Front orientation. Contains Annotated. Combination Wrenches.
    Image of Attribute. Front orientation. Contains Annotated. Combination Wrenches.
    Image of Specification. 12-Point Opening. Front orientation. ZoomedIn view. Contains Border. 12-Point Opening. Combination Wrenches.

    12-Point

    Opening

    Your go-to wrenches for routine maintenance. With two different ends, you need fewer tools to tighten and loosen nuts and bolts. The open end slides onto the side of fasteners for adjustments in tight spots. When nuts and bolts won't budge, the box end fully encircles them to apply maximum torque. Drop forged for added strength, these wrenches will be part of your toolbox for life.
    12-Point Opening—The most common opening, these wrenches work on hex and 12-point nuts and bolts. They slide onto hex heads at more angles than 6-point fasteners for quicker engagement, but they're more likely to slip when you apply more torque.
    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.
    Black-Oxide Steel—The dark, matte coating protects these wrenches from wear and won't flake off. They offer minimal corrosion resistance, though, so they're best for dry environments.
    Dull—With a textured finish, these wrenches won't slip out of your hands, even when greasy or oily.
    Box End
    Open
    End
    Drive
    Size
    Overall
    Lg.
    Head Offset
    Angle
    Head
    Thick.
    Opening
    Angle
    Head
    Thick.
    Appearance
    Each
    12-Point Opening
     
    Chrome-Plated Steel
    3"32"15°1 7/32"15°1 5/8"Dull5441A670000000
     
    Black-Oxide Steel
    3"32"15°1 5/8"15°1 7/32"Dull7242A62000000
     

    Strikable Open-End Wrenches

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

    Round

    Opening

    Don't wrestle with stuck fasteners. Strike the handle with a hammer to break them free. Designed to take the hits, these wrenches are drop forged for added strength and will be part of your toolbox for life. Also known as slugging wrenches.
    Round Opening—The rounded edges spread force evenly to prevent stripping your fasteners. Use them on hex-head fasteners.
    Steel—Best for dry environments since moisture will cause these wrenches to rust.
    Drive
    Size
    Overall
    Lg.
    Opening
    Angle
    Head
    Thk.
    Specs.
    Met
    Each
    Round Opening
     
    Steel
    3"14 3/4"15°1 3/16"DIN 13355555A570000000
     

    Striking Box Wrenches

    Image of Product. Front orientation. Box Wrenches. Striking Box Wrenches, 12-Point Opening.

    12-Point Opening

    Also known as slugging wrenches, strike the handle with a hammer to break stuck fasteners free.
    12-Point Opening—Wrenches with a 12-point opening are easier to position on hex fasteners than wrenches with a 6-point opening but make less contact.
    Drive
    Size
    Overall
    Lg.
    Head
    Thk.
    Material
    Specs. Met
    Each
    12-Point Opening
    3"14"1 5/8"Black-Oxide SteelASME B107.1005456A320000000
     

    Deep-Offset Striking Box Wrenches

    Image of Product. Front orientation. Box Wrenches. Deep-Offset Striking Box Wrenches.
    Image of Attribute. Front orientation. Contains Annotated. Deep-Offset Striking Box Wrenches.
    The head is offset 45° to provide clearance for reaching over obstructions. Also known as slugging wrenches, strike the handle with a hammer to break stuck fasteners free.
    Drive
    Size
    Overall
    Lg.
    Head Offset
    Angle
    Head
    Thk.
    Material
    Specs. Met
    Each
    12-Point Opening
    3"16"45°1 7/8"Black-Oxide SteelASME B107.1005455A310000000
     

    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, 1" Square Drive, and 1 1/2" 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
    Nut
    Bolt
    Compatible Retaining
    Ring ID
    Material
    Overall
    Lg.
    Socket
    Shape
    Each
    Each
    3/4" Square Drive
    3"2 1/4"2 3/4"2"Black-Oxide Steel3 3/4"6-Point5552A38100000005552A18200000
     
    1" Square Drive
    3"2"2 3/4"2 1/2"Black-Oxide Steel3 7/8"6-Point5550A630000005550A6130000
     
    1 1/2" Square Drive
    3"2"2 1/2"3 3/8"Black-Oxide Steel4 5/8"6-Point7196A410000007196A6140000
     
    Deep Clearance
    Image of Product. Front orientation. Sockets. 6-Point Impact Sockets, Deep 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 and 1" 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
    Nut
    Bolt
    Compatible Retaining
    Ring ID
    Material
    Overall
    Lg.
    Socket
    Shape
    Each
    Each
    3/4" Square Drive
    3"3 1/4"3 51/64"2"Black-Oxide Steel4 3/4"6-Point5552A48100000005552A18200000
     
    1" Square Drive
    3"2"3 19/32"2 1/2"Black-Oxide Steel5"6-Point5550A7580000005550A6130000
     

    8-Point Sockets

    Quickly position these sockets on square and external 8-point fasteners.
    Steel
    Image of Product. Front orientation. Standard Clearance. 8-Point Sockets, 3/4" Square Drive.

    3/4" Square Drive

    Image of Specification. Front orientation. 8-Point Socket.

    8-Point

    Socket

    Image of Specification. Front orientation. For External Octagonal Drives. 8-Point Sockets.

    For

    External

    Octagonal

    Drives

    3/4" Square Drive—3/4" square drive size sockets work with wheel bearing locknuts on trucks and trailers.
    Standard Clearance
    Drive
    Size
    OD
    Socket
    Shape
    For Drive Style
    Overall
    Lg.
    Each
    3/4" Square Drive
    3"3 31/64"8-PointExternal Octagon
    		3 1/2"99940A150000000
     

    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
    OD
    Socket
    Shape
    For Drive Style
    Overall
    Lg.
    Each
    1" Square Drive
    3"4 1/32"12-PointExternal 12-Point, External Hex
    		4 3/16"5546A320000000
     
    back to top