Gearwrench 84405 3/8 in Drive Impact Socket Extension 10 in

Product Description

The GEARWRENCH 84405 is a 3/8 inch drive impact socket extension designed to add reach between an impact wrench or ratchet and a socket in tight or deep-access fastener locations. With an overall length of 10 inches, this extension gives technicians the clearance needed to work past obstructions without sacrificing drive engagement. It meets ANSI and ASME standards, making it a reliable choice for professional use in automotive, HVAC, electrical, and general mechanical service. The 84405 is a single-piece extension suited for daily shop use by mechanics, service technicians, and tradespeople who work with 3/8 inch drive impact tooling.

This extension is used wherever a standard-length socket does not reach the fastener or where ratchet clearance is restricted. Common applications include engine bay work, HVAC equipment fasteners, electrical panel hardware, and plumbing fixture installations. It is appropriate for both pneumatic and cordless impact drivers as well as manual ratchets running on a 3/8 inch drive. The 10 inch overall length makes it practical for recessed fasteners in equipment cabinets, air handlers, and structural assemblies where shorter extensions fall short.

Key Features

• 3/8 inch drive connection works with standard impact sockets and ratchets
• 10 inch overall length provides reach into deep or obstructed fastener locations
• Meets ANSI and ASME standards for dimensional and performance compliance
• Non-locking design allows fast socket swaps without a release tool
• Lightweight at 0.18 pounds for reduced fatigue during overhead or extended use

Compatibility

Designed as a standard 3/8 inch drive accessory compatible with 3/8 inch drive impact sockets, ratchets, and torque wrenches from any manufacturer following ANSI and ASME drive standards.

Installation Notes

This extension is installed by hand — seat the male drive end fully into the socket and the female end onto the drive tool before applying torque. Inspect the extension for cracks or deformation before each use, particularly after impact service. Do not use impact extensions as pry bars or striking tools. Service professionals should verify drive size compatibility before use to avoid drive-square damage.