Crowfoot Wrenches

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Posted by Socket Tool Expert on 3/15/2023 to
Hand Tools
Williams Crowfoot Wrench Open End

Williams Crowfoot Wrench Open End

Crowfoot wrenches are a type of hand tool used for tightening or loosening bolts and nuts. They have an open-loop design, similar to an open-end wrench, but with a much smaller profile. The small size allows access to tight spaces or hard-to-reach fasteners where a standard wrench won’t fit.

Crowfoot wrenches are typically used with a ratchet, breaker bar, or torque wrench to provide leverage. They come in various sizes and are available in metric or imperial measurements to match the fastener’s size. They are often made of steel, with finishes such as chrome, black oxide, or nickel plating for corrosion resistance.

Crowfoot wrenches are typically finished with one of the following to provide corrosion resistance and improve durability:

  • Chrome plating: provides a sleek, polished appearance and good resistance to rust and corrosion.
  • Black oxide: provides a matte black finish and improved resistance to corrosion compared to bare steel.
  • Nickel plating: provides a shiny, silver appearance and good resistance to rust and corrosion.
  • Mirror-polished: provides a highly reflective, polished finish for improved visibility in low-light conditions.

    • The choice of finish depends on the user’s preference, application, and the level of corrosion resistance required.

Crowfoot wrenches are available in a few different types, including:

  • Open-end crowfoot : wrench has an open loop design for a quicker turn but a less secure grip on the fastener.
  • Box-end crowfoot wrench: has a closed loop design for a more secure grip on the fastener but slower turn.
  • Flex-head crowfoot wrench: has a flexible head that can be angled to reach tight spaces.
  • Ratcheting crowfoot wrench: has a ratcheting mechanism for quicker turning without removing the wrench from the fastener.
  • Note: Crowfoot wrenches are also available in different sizes to match the size of the fastener being worked on and in both metric and imperial measurements.Crowfoot wrenches are available in a range of sizes to match the size of the fastener being worked on. They come in both metric and imperial measurements, with the most common sizes being:

    • Metric:

    • 8mm
    • 9mm
    • 10mm
    • 11mm
    • 12mm
    • 13mm
    • 14mm
    • 15mm
    • 16mm
    • 17mm
    • 18mm
    • 19mm

    Imperial:

    • 3/8″
    • 7/16″
    • 1/2″
    • 9/16″
    • 5/8″
    • 11/16″
    • 3/4″
    • 13/16″
    • 7/8″
    • 15/16″
    • 1″
    • 1-1/16″
    • 1-1/8″
    • 1-1/4″

    Note: Some sets may include a range of sizes to accommodate different fastener sizes, while others may consist of only a few sizes for specific applications. The size of the crowfoot wrench needed will depend on the size of the fastener being worked on.

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