McMaster-Carr logo
    Filter by
    System of Measurement
    Number of Pieces
    Wrench Opening Shape
    Drive Size
    Head Style
    Appearance
    Relative Length
    Container Type
    Material
    Number of Teeth
    Turn Required to Ratchet
    Attribute Image
    Head Offset Angle
    Attribute Image
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Snippet
    Wrench Type
    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)
    Help me decide (beta)
    3 Products

    Spline Ratcheting Combination Wrench Sets

    Image of Product. Front orientation. Combination Wrenches. Spline Ratcheting Combination Wrench Sets.
    Image of Attribute. Front orientation. Contains Annotated. Standard Length, Sold as Sets, Ratcheting.
    Image of Specification. Spline Opening. Front orientation. ZoomedIn view. Contains Border. Spline Opening. Standard Length, Sold as Sets, Ratcheting.

    Spline Opening

    These versatile wrenches turn a range of hex, 12-point, and spline fasteners. With more points of contact than 12-point openings, the spline-shaped box end gets a better grip on nuts and bolts and is less likely to round off corners. Rotate these wrenches without having to remove and reposition them. They're commonly used where you don't have enough space for full turns. To switch between loosening and tightening, flip them over.
    Polished—The smooth surface is easy to wipe clean of grime. The mirror-like finish lends a high-end look to any toolkit.
    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.
    Box End
    No. of
    Pieces
    Drive Size, mm
    External Spline Drive Size
    Number
    of Teeth
    Overall Lg.
    Open-End Opening
    Angle
    Appearance
    Material
    Container Type
    Each
    Spline Opening
    146, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19No. 6, No. 7, No. 8, No. 9, No. 10, No. 11, No. 12, No. 13, No. 14, No. 15, No. 16, No. 17, No. 18, No. 19724 15/16" to 11 1/16"15°PolishedChrome-Plated SteelPlastic Roll-Up Pouch4950A790000000
     

    Spline Ratcheting Combination Wrenches

    Image of Product. Front orientation. Combination Wrenches. Spline Ratcheting Combination Wrenches.
    Image of Attribute. Front orientation. Contains Annotated. Standard Length, Ratcheting, Sold Individually.
    Image of Attribute. Front orientation. Contains Annotated. Standard Length, Ratcheting, Sold Individually.
    Image of Specification. Spline Opening. Front orientation. ZoomedIn view. Contains Border. Spline Opening. Standard Length, Ratcheting, Sold Individually.

    Spline Opening

    These versatile wrenches turn hex, 12-point, and spline fasteners. With more points of contact than 12-point openings, the spline-shaped box end gets a better grip on nuts and bolts and is less likely to round off corners. Rotate these wrenches without having to remove and reposition them. They're commonly used where you don't have enough space for full turns. To switch between loosening and tightening, flip them over.
    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.
    Polished—The smooth surface is easy to wipe clean of grime. The mirror-like finish lends a high-end look to any toolkit.
    Box End
    Open
    End
    Drive Size,
    mm
    Overall
    Lg.
    External Spline
    Drive Size
    Head Offset
    Angle
    Head
    Thick.
    Number
    of Teeth
    Opening
    Angle
    Head
    Thick.
    Appearance
    Each
    Spline Opening
     
    Chrome-Plated Steel
    75 11/64"No. 715°17/64"7215°11/64"Polished4950A43000000
     

    Tri-Wing® Bits

    Image of Product. Hex Shank. Front orientation. Screwdriver Bits. Tri-Wing® Bits, For Hand Tools.

    Hex Shank

    Use these bits to turn Tri-Wing® screws, which are commonly found on electronics. They have offset wings that withstand high torque without slipping and damaging the drive.
    Hex Shank—Also known as insert bits, these snap into hand tools. If you want to use them with power tools, attach a bit adapter (not included).
    Steel—Best for dry environments, since moisture will cause these bits to rust.
    Drive
    Size
    For Screw
    Size
    Overall
    Lg.
    Material
    Each
    For Hand Tools
     
    1/4" Hex Shank Size
    No. 75/16"
    		1 1/4"Steel
    		7175A53000000
     
    back to top