GWLSAD232PX4 four-piece lineman impact adapter set, with four black hex adapters standing upright, each showing a pin hole and white side marking.
GEARWRENCH 7/16 in. hex to 1/2 in. square lineman impact adapter, shown on a white background.
GEARWRENCH 7/16 in. hex to 1/2 in. square lineman impact adapter with black finish.
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.

4 Pack Lineman Impact Adapter Set

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GWLSAD232PX4
The GEARWRENCH 4 Piece 7/16" Hex to 1/2" Square Lineman Impact Adapter Set provides the same high-performance adapter in a convenient multi-pack format for crews, service trucks, and utility tool inventories. Each adapter features a pinned detent design for secure socket retention, proprietary heat treatment for up to 10X longer durability than standard adapters, and a weather-resistant coating for demanding field conditions. Designed for use with impact sockets and 7/16" hex impact drivers, this set helps keep crews productive and prepared across multiple job sites. 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 : 099575433382
    • 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)
    • Set Piece Count : 4
    • Finish : Manganese Phosphate
    • 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 : 099575433382
    • 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)
    • Set Piece Count : 4
    • 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.