Proto J4904BD Hex Bit Socket 3/8 in Drive 1/8 in Hex Ball End

Product Description

The PROTO J4904BD is a long ball end hex bit socket designed for hand tool use in professional trade and industrial maintenance applications. Built for a 3/8 inch drive, this socket accepts a 1/8 inch hex bit and features a ball end design that allows fastener engagement at off-axis angles, useful in confined or obstructed work areas. The overall length measures 6-3/32 inches, with a 5 inch bit length that extends reach into deep cavities or recessed fastener locations. At 0.19 pounds, it is lightweight enough for sustained use without fatigue. Licensed trades and maintenance technicians rely on this type of socket for mechanical assembly, equipment servicing, and precision fastener work.

This hex bit socket is suited for residential and commercial maintenance environments where hex fasteners are common, including HVAC equipment panels, electrical enclosures, pump assemblies, and general mechanical systems. The long-reach configuration makes it particularly effective when standard-length sockets cannot reach recessed or deeply set fasteners. It is intended for use with 3/8 inch drive ratchets, extensions, and torque wrenches. The ball end allows up to approximately 25 degrees of angular engagement, which reduces the need to reposition the tool when working in tight quarters.

Key Features

• Ball end hex tip allows off-angle fastener engagement for use in confined spaces
• Long overall length of 6-3/32 inches provides extended reach into deep fastener locations
• 5 inch bit length maximizes access in recessed or obstructed applications
• 3/8 inch drive compatibility works with standard ratchets, extensions, and torque wrenches
• 1/8 inch hex size fits common small hex fasteners found in mechanical and electrical assemblies
• Lightweight at 0.19 pounds for reduced fatigue during repetitive use

Compatibility

Designed as an OEM-style replacement and standard hand tool fitment for 3/8 inch drive socket sets and compatible drive accessories from major tool manufacturers.

Installation Notes

This socket is installed by hand tool users including HVAC technicians, electricians, plumbers, and general maintenance mechanics. Always ensure the drive socket is fully seated on the fastener before applying torque to avoid rounding the hex recess. Power down or de-energize equipment before accessing fasteners on electrical or mechanical panels. The ball end tip is not rated for impact driver use and should only be used with hand-operated or low-speed drive tools.