Proto J77273P Impact Socket 3/8 in Drive 3/8 in Hex

Product Description

The PROTO J77273P is a 3/8 inch drive, 3/8 inch hex impact socket designed for use with pneumatic, electric, or manual impact wrenches in demanding trade environments. Built from alloy steel, it features a 6-point contact geometry that maximizes torque transfer while reducing fastener rounding under high-torque conditions. The overall length of 1-29/32 inches keeps it compact enough for confined spaces. Electricians, millwrights, pipefitters, and general mechanics reach for this socket when driving or removing hex-head fasteners on equipment, panels, and mechanical assemblies where standard sockets would fail under impact loads.

This socket suits residential and commercial maintenance, industrial equipment service, and mechanical assembly work wherever 3/8 inch hex fasteners are used. Its universal style makes it appropriate for a wide range of applications across HVAC, plumbing, and electrical trades. It is suited for both production and field service settings where a compact, impact-rated 3/8 inch drive tool is needed.

Key Features

• 3/8 inch square drive compatible with standard 3/8 inch drive impact wrenches and ratchets
• 3/8 inch hex drive point for direct engagement with hex-head fasteners
• 6-point contact geometry reduces fastener rounding under high torque
• Alloy steel construction rated for impact use
• Compact 1-29/32 inch overall length suits confined installation areas
• Meets ASME B107.2 specification

Compatibility

Designed as an OEM-style impact socket for use with 3/8 inch drive impact wrenches, ratchets, and extension bars requiring a 3/8 inch hex drive socket.

Installation Notes

This socket is installed and removed by hand onto any standard 3/8 inch square drive impact tool. Ensure the drive tool is powered down or the air supply is disconnected before changing sockets. Inspect the socket for cracks or deformation before each use and remove from service if damage is found. Do not use impact sockets with standard hand-ratchet torque wrenches unless the tool is rated for impact accessories.