McMaster-Carr logo
    Filter by
    Wrench Opening Shape
    System of Measurement
    Wrench Style
    Turn Required to Ratchet
    Attribute Image
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Number of Pieces
    DFARS Specialty Metals
    Head Thickness
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    13 Products

    Self-Adjusting Ratcheting Box Wrench Head Sets

    Image of ProductInUse. Wrench and Socket Extension Not Included. Front orientation. Wrench Heads. Self-Adjusting Ratcheting Box Wrench Head Sets.
    Image of Product. Front orientation. Wrench Heads. Self-Adjusting Ratcheting Box Wrench Head Sets.

    Wrench and Socket

    Extension Not Included

    Get a strong grip in tight areas, even on fasteners that are rounded or damaged. Open the spring-loaded jaws in these heads to access a fastener like an open-end wrench; the jaws will automatically close when you push against the fastener. The 6-point opening grips hex heads on all sides. Also known as crowfoot wrenches. Attach one to a socket extension to reach obstructed fasteners. With the ratcheting feature, you can turn the fastener without removing and repositioning the wrench head.
    No. of
    Pieces
    Includes
    Turn Req.
    to Ratchet
    Material
    Wrench Opening
    Shape
    Container
    Type
    Each
    3/8" Square Drive
    6Wrench Heads: 8 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm15°Stainless Steel6-PointFoam Tray0000000000000000
     

    Snap-Open Ratcheting Box Wrenches

    Image of ProductInUse. Front orientation. Box Wrenches. Snap-Open Ratcheting Box Wrenches .
    Image of Product. Front orientation. Box Wrenches. Snap-Open Ratcheting Box Wrenches .
    Open the jaws to fit around a fastener like an open-end wrench; close the jaws and the wrench acts like a ratcheting box wrench, allowing you to turn fasteners without removing and repositioning the tool.
    Turn Required to Ratchet—The smaller the turn required to ratchet, the less clearance you need to engage the ratchet.
    Drive
    Size
    Overall
    Lg.
    Head
    Thk.
    Turn Req.
    to Ratchet
    Material
    Each
    12-Point Opening
    3/8"5 7/16"9/32"30°Black-Oxide Steel0000000000000
    7/16"5 7/16"9/32"30°Black-Oxide Steel000000000000
    1/2"5 7/16"9/32"30°Black-Oxide Steel000000000000
    9/16"7 1/4"3/8"30°Black-Oxide Steel000000000000
    5/8"7 1/4"3/8"30°Black-Oxide Steel000000000000
    11/16"7 1/4"3/8"30°Black-Oxide Steel000000000000
    3/4"7 1/4"3/8"30°Black-Oxide Steel000000000000
    13/16"9 3/8"7/16"30°Black-Oxide Steel000000000000
    7/8"9 3/8"7/16"30°Black-Oxide Steel000000000000
    15/16"9 3/8"1/2"30°Black-Oxide Steel000000000000
    1"9 3/8"1/2"30°Black-Oxide Steel000000000000
     

    Snap-Open Ratcheting Box Wrench Sets

    Image of ProductInUse. Front orientation. Box Wrenches. Snap-Open Ratcheting Box Wrench Sets .
    Image of Product. Front orientation. Box Wrenches. Snap-Open Ratcheting Box Wrench Sets .
    Open the jaws to fit around a fastener like an open-end wrench; close the jaws and the wrench acts like a ratcheting box wrench, allowing you to turn fasteners without removing and repositioning the tool.
    Turn Required to Ratchet—The smaller the turn required to ratchet, the less clearance you need to engage the ratchet.
    Sizes Included
    Overall Lg.
    Turn Req.
    to Ratchet
    Material
    Container Type
    Each
    12-Point Opening
     
    10-Piece Sets
    10 mm
    11 mm
    12 mm
    13 mm
    14 mm
    15 mm
    16 mm
    17 mm
    18 mm
    19 mm
    5 7/16" to 7 1/4"30°Black-Oxide SteelPlastic Roll-Up Pouch00000000000000
     
    back to top