Gearwrench 84643 Impact Socket Adapter 3/8 to 1/2 Square Drive

Product Description

The GEARWRENCH 84643 is an impact-rated socket adapter designed to convert a 3/8 inch square male drive to a 1/2 inch square female drive. At 1.5 inches overall length, it provides a compact, rigid connection between impact wrenches or ratchets and socket sets of a different drive size. Built to ASME B107.1 standards, this adapter is suited for professional use in automotive, mechanical, and industrial applications where drive size changes are required on the fly.

This adapter is commonly used by automotive technicians, fleet maintenance crews, and mechanical trades who work with both 3/8 inch and 1/2 inch drive tooling. It allows a 1/2 inch drive socket to be driven by a 3/8 inch impact tool, reducing the need to switch between tool sets. It is appropriate for impact service and can handle the demands of air, electric, and cordless impact wrenches used in shop and field environments.

Key Features

• Converts 3/8 inch square male drive to 1/2 inch square female drive
• Rated for impact drive use
• Compact 1.5 inch overall length for use in tight spaces
• Meets ASME B107.1 standard for socket drive tools
• Backed by a manufacturer lifetime warranty

Compatibility

Designed as an OEM-style impact socket adapter compatible with standard 3/8 inch square drive impact tools and 1/2 inch square drive sockets meeting ASME B107.1 drive specifications.

Installation Notes

Installation requires no tools beyond the adapter itself. Ensure the impact wrench or ratchet is powered down or disconnected from the air supply before attaching or removing the adapter. Verify that both the male and female drive connections are fully seated and that the retaining mechanism on the socket is engaged before applying torque. Do not exceed the impact rating of the lowest-rated component in the drive train.