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GEARWRENCH 7/16 in. hex to 1/2 in. square lineman impact adapter with black finish.
GEARWRENCH 7/16 in. hex to 1/2 in. square lineman impact adapter, shown on a white background.
Infographic showing the GEARWRENCH 7/16 in. hex to 1/2 in. square adapter with post taper, weather-resistant coating, laser markings, and socket retention features.

7/16" Hex x 1/2" Square Lineman Impact Adapter

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GWLSAD716P
The GEARWRENCH 7/16" Hex to 1/2" Square Lineman Impact Adapter allows users to pair impact sockets with 7/16" hex impact drivers commonly used in utility applications. The pinned detent design helps securely retain sockets during high-torque fastening, while proprietary heat treatment delivers up to 10X longer durability than standard impact adapters. A weather-resistant coating helps withstand demanding outdoor conditions, making this adapter ideal for linemen, utility professionals, and power distribution work. Backed by a Full Lifetime Warranty.
  • Features
    • 7/16" hex shank fits quick-change impact driver chucks for fast attachment
    • Designed for use with 1/2" drive impact sockets in utility and lineman applications
    • Pinned detent design securely retains sockets during high-torque applications
    • Proprietary heat treatment delivers up to 10X longer service life than standard impact adapters
    • Weather-resistant coating helps protect against corrosion and harsh jobsite conditions
    • 7/16" hex shank fits quick-change impact driver chucks for fast attachment
    • Designed for use with 1/2" drive impact sockets in utility and lineman applications
    • Pinned detent design securely retains sockets during high-torque applications
    • Proprietary heat treatment delivers up to 10X longer service life than standard impact adapters
    • Weather-resistant coating helps protect against corrosion and harsh jobsite conditions
    • Backed by a full lifetime warranty
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  • Specifications
    • Warranty : Full Lifetime
    • Drive Tang Size : 7/16 in Hex
    • Type : Lineman Adapter
    • Overall Length : 2.756 in
    • Overall Width : 0.650 in
    • Male Drive Size : 7/16 in Hex
    • Female Drive Size : 1/2 in
    • UPC : 099575433122
    • Prop 65 : WARNING: This product contains or produces a chemical known to the State of California to cause cancer and birth defects or other reproductive harm.
    • Material : Chrome-Molybdenum (Cr-Mo)
    • Finish : Manganese Phosphate
    • Packaging : Bagged
    • Warranty : Full Lifetime
    • Drive Tang Size : 7/16 in Hex
    • Type : Lineman Adapter
    • Overall Length : 2.756 in
    • Overall Width : 0.650 in
    • Male Drive Size : 7/16 in Hex
    • Female Drive Size : 1/2 in
    • UPC : 099575433122
    • Prop 65 : WARNING: This product contains or produces a chemical known to the State of California to cause cancer and birth defects or other reproductive harm.
    • Material : Chrome-Molybdenum (Cr-Mo)
    • Finish : Manganese Phosphate
    • Packaging : Bagged
    • Hi-Viz® : No
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  • Frequently Asked Questions
    What is a 7/16" hex to 1/2" square impact adapter used for?
    This adapter allows users to drive 1/2" square impact sockets using tools equipped with a 7/16" hex quick-change chuck.
    Is this adapter designed for impact applications?
    Yes. The adapter is engineered for use with impact tools and impact sockets in high-torque applications.
    What is the benefit of the pinned detent design?
    The pinned detent helps securely retain sockets during use, reducing the chance of accidental socket disengagement.
    How does the heat treatment improve durability?
    The proprietary heat treatment is designed to provide up to 10X longer service life compared to standard impact adapters.
    Is this adapter suitable for utility and lineman work?
    Yes. The adapter is designed for utility, transmission, distribution, and other professional lineman applications.
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