McMaster-Carr logo
    Filter by
    Wrench Opening Shape
    System of Measurement
    Drive Size
    Number of Pieces
    Head Style
    Relative Length
    Appearance
    Number of Teeth
    For Use With
    Number of Heads
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Compare
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    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)
    7 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
    External Spline Drive Size
    Number
    of Teeth
    Overall Lg.
    Open-End Opening
    Angle
    Appearance
    Material
    Container Type
    Each
    Spline Opening
    111/4", 9/32", 5/16", 11/32", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"No. 8, No. 9, No. 10, No. 11, No. 12, No. 14, No. 16, No. 18, No. 20, No. 22, No. 24725 1/8" to 11"15°PolishedChrome-Plated SteelPlastic Roll-Up Pouch4950A690000000
    146 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mmNo. 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 Pouch4950A79000000
     

    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
    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
    3/8"5 59/64"No. 1215°19/64"7215°13/64"Polished4950A62000000
    12 mm7 27/64"No. 1215°21/64"7215°15/64"Polished4950A7400000
     

    Bit Sets

    Image of Product. Hex Shank. Front orientation. Screwdriver Bits. Bit Sets, For Hand Tools.

    Hex Shank

    Have a range of bits ready to turn the most common screw styles and sizes.
    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.
    No. of
    Pieces
    Components
    Included
    Bits Included
    Adapters Included
    Material
    Container
    Type
    Each
    For Hand Tools
     
    1/4" Hex Shank Size
    1004 Adapters
    96 Bits    		Drilled Spanner: No. 4, No. 6, No. 8, No. 10, No. 12, 1/4" (1" O'all Lg.)—1 ea.
    Hex (Inch): 0.050", 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8" (1" O'all Lg.)—1 ea.
    Hex (Metric): 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm (1" O'all Lg.)—1 ea.
    Phillips: No. 0 (1" O'all Lg.)—1 ea.
    Phillips: No. 1, No. 3 (1" O'all Lg.)—2 ea.
    Phillips: No. 2 (1" O'all Lg.)—4 ea.
    Pozidriv®: No. 1, No. 2, No. 3 (1" O'all Lg.)—1 ea.
    Screw-In Hook Driver Bit—1 ea.
    Slotted: 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 3/8" (1" O'all Lg.)—1 ea.
    Square: No. 0, No. 1, No. 2, No. 3, No. 4 (1" O'all Lg.)—1 ea.
    Tamper-Resistant Hex (Inch): 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16" (1" O'all Lg.)—1 ea.
    Tamper-Resistant Hex (Metric): 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm (1" O'all Lg.)—1 ea.
    Tamper-Resistant Torx: T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40 (1" O'all Lg.)—1 ea.
    Torx: T5, T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40, T45, T50, T55 (1" O'all Lg.)—1 ea.    		1/4" Male Square Drive × 1/4" Hex Shank Adapter (1" O'all Lg.)
    1/4" Male Square Drive × 1/4" Hex Shank Adapter (2" O'all Lg.)
    2 1/2" Lg. Bit Adapter for Power Tools
    Bit Adapter for Square Drive Tools    		Steel
    		Plastic Case2599N1000000
     

    Plain-Grip Screwdrivers

    Image of Product. Front orientation. Screwdrivers. Plain-Grip Screwdrivers.
    Ideal for industrial maintenance, these no-frills screwdrivers withstand years of heavy use in the shop and on the jobsite. The hard plastic handle won't crack or wear out from drops and scrapes. It's also easy to wipe down and won't get sticky or gummy when exposed to oils or chemicals, unlike a soft handle.
    Premium—The best screwdrivers available, with tips machined to tight tolerances for the tightest possible fit in fastener recesses. The snug fit means they'll turn screws quickly without wearing screw heads and the driver's tip.
    Standard Length—The most common screwdriver length for a specific drive size.
    Shaft
    Drive
    Size
    Relative
    Lg.
    Overall
    Lg.
    Lg.
    Overall
    Wd.
    Material
    Mfr.
    Each
    Drilled Spanner
     
    Premium
    No. 12Standard8"4"1/4"Steel
    		Allegheny Bolt & Screw94062A118000000
     

    Precise-Control Bit Screwdrivers

    Image of Product. Front orientation. Screwdrivers. Precise-Control Bit Screwdrivers.
    Make fine adjustments to a wide range of screws in electronics, miniature models, and more. These screwdrivers give you more control than standard screwdrivers, so you can avoid stripping tiny screws or cracking delicate materials. They’re also known as miniature screwdrivers. Press your palm against the end of the handle as you rotate the shaft with your fingertips.
    All components come in a carrying case with a magnetic locking lid. The underside of the lid has a raised grid pattern, so you can use it to organize your screws while you work.
    Premium—The best screwdrivers available, with handles that keep you comfortable during long stretches of use. They come with high-quality bits that fit snugly into fastener recesses to turn screws quickly without slipping.
    Shaft
    No. of
    Sizes
    Sizes Included
    Components Included
    For Bit Hex
    Shank Size
    Relative
    Lg.
    Overall
    Lg.
    Lg.
    Overall
    Wd.
    Material
    Bit-Holding
    Mechanism
    Mfr.
    Each
    Bit Screwdrivers with Bit Storage in Case
     
    Premium
    102Phillips: No. 000, No. 00, No. 0
    Phillips: No. 1, No. 2, No. 3
    Slotted: 0.039", 0.059", 0.079", 0.098", 0.118", 0.138"
    Slotted: 0.157", 0.197", 0.236", 0.276", 0.315"
    Hex: 0.7 mm, 0.9 mm, 1.3 mm, 1.5 mm
    Torx: T2, T3, T4, T5
    Torq-Set®: No. 6, No. 8, No. 10
    Tamper-Resistant Hex: 1/8", 9/64", 5/32", 3/16", 7/32", 1/4"
    Tamper-Resistant Hex: 2 mm, 2.5 mm, 3 mm, 3.5 mm
    Tamper-Resistant Hex: 4 mm, 5 mm, 6 mm, 7 mm, 8mm
    Tamper-Resistant Torx: T6, T7, T8
    Tamper-Resistant Torx: T9, T10, T15, T20, T25, T27, T30, T35, T40
    Pentalobe: PL2, PL5, PL6
    JIS: No. 000, No. 00, No. 0, No. 1
    Y-Type: No. 000, No. 00, No. 0, No. 1
    Square: No. 0, No. 1, No. 2, No. 3
    Pozidriv®: No. 0, No. 1, No. 2, No. 3
    Gamebit: 3.8 mm, 4.5 mm
    Drilled Spanner: No. 4, No. 6
    Drilled Spanner: No. 8, No. 10, No. 12
    Triple Square: M5, M6, M8
    Tri-Wing®: No. 1, No. 2, No. 3, No. 4
    Triangle: 2 mm, 2.2 mm, 2.6 mm, 3 mm
    Clutch: No. 1, No. 2, No. 3
    Nutdriver: 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm    		Bit Screwdriver for 4 mm Bits
    Bit Screwdriver for 1/4" Bits
    1/4" × 4 mm Hex Shank Adapter
    1/4" Hex Shank × 1/4" Square Drive Adapter
    1/4" Driver × 3/8" Square Drive Adapter
    1/4" Square Drive × 1/4" Hex Shank Adapter
    iPhone Standoff Bit
    Oval Drive Bit
    SIM Card Ejector Bit
    Magnetic Retriever Bit
    Schrader Valve Core Bit
    Eyebolt and Hook Drive Bit    		1/4", 4 mmStandard4 1/2"13/16"1/4"AluminumMagnetiFixIt9749N12000000
     
    back to top