Gearwrench 84342N Impact Socket 3/8 in Drive 19mm

Product Description

The GEARWRENCH 84342N is a 19mm, 6-point impact socket built for 3/8 inch drive impact wrenches and ratchets. Manufactured from chromium-molybdenum steel with a black oxide finish, it is designed to handle the high-torque demands of impact tools in professional shop and field environments. The socket measures 2.48 inches overall length and weighs 0.42 pounds. High-visibility laser-etched size markings and secondary hard-stamped markings allow fast identification in a busy tool tray or bag. This socket is a standard addition to the impact socket sets used by automotive technicians, fleet mechanics, and general tradespeople who work with metric fasteners.

The 84342N is suited for automotive, heavy equipment, and industrial maintenance applications where a 19mm metric fastener is common — wheel lug nuts, suspension components, and drivetrain hardware being typical use cases. Its 6-point hex drive geometry is preferred for impact work because it contacts the flat faces of a fastener rather than the corners, reducing the chance of rounding under high torque. The black oxide finish provides a degree of corrosion resistance in standard shop conditions. This socket is intended for use with 3/8 inch drive impact tools only and is not rated or designed for use as a hand-socket in torque-critical applications requiring a calibrated torque wrench.

Key Features

• Chromium-molybdenum steel construction handles repeated high-torque impact cycles
• 6-point off-corner loading design reduces fastener rounding during removal
• High-visibility laser-etched size markings for fast identification
• Secondary hard-stamped size markings as a backup when laser etching wears
• Black oxide finish for corrosion resistance in standard environments
• Meets ASME B107.33M standards for impact socket performance

Compatibility

Designed for use with 3/8 inch drive impact wrenches, air ratchets, and cordless impact drivers accepting standard 3/8 inch square drive tooling. Fits 19mm metric hex fasteners.

Installation Notes

Installation and removal should be performed by a qualified mechanic or technician familiar with impact tooling. Ensure the socket is fully seated on the drive anvil before applying torque. Do not use impact sockets on manual torque wrenches, as the socket geometry and steel specification are calibrated for impact loading, not precision torque measurement. Inspect the socket for cracks or deformation before each use and remove from service if damage is found.