Proto J4906BD Hex Bit Socket 3/8 in Drive 3/16 in Ball End

Product Description

The PROTO J4906BD is a long ball end hex bit socket designed for hand tool use in professional trade and industrial maintenance applications. It features a 3/8 inch drive and accepts a 3/16 inch hex fastener with a ball end tip that allows off-axis engagement up to approximately 25 to 30 degrees. The overall length is 6-3/32 inches with a dedicated bit length of 5 inches, making it suited for reaching recessed or obstructed fasteners that standard-length sockets cannot access. This socket is intended for use by mechanics, millwrights, HVAC technicians, electricians, and other trade professionals who regularly work with hex socket head fasteners in tight or deep clearance situations.

This bit socket is well suited for equipment maintenance and assembly tasks where hex socket cap screws or set screws are installed deep within housings, panels, or mechanical assemblies. The extended bit length reduces the need for extension bars in many common service scenarios. Typical applications include HVAC equipment access panels, electrical enclosures, pump and motor housings, and general mechanical assemblies using 3/16 inch hex fasteners. It drives with any standard 3/8 inch drive ratchet, breaker bar, or torque wrench.

Key Features

• Ball end tip allows off-axis driving for access in confined or angled fastener locations
• Long configuration with 5 inch bit length reaches deeply recessed hex fasteners
• 3/8 inch drive is compatible with standard ratchets, extensions, and torque wrenches
• 3/16 inch hex size covers common hex socket cap screws and set screws used across HVAC, electrical, and mechanical equipment
• Overall length of 6-3/32 inches reduces the need for additional extension bars in many applications

Compatibility

Designed for use with any standard 3/8 inch drive hand tool system. Fits 3/16 inch hex socket head fasteners. Compatible with 3/8 inch drive ratchets, torque wrenches, and sliding T-handles from any manufacturer.

Installation Notes

This socket is intended for use by qualified trade professionals working with hand tools only. Ensure the fastener hex socket is free of debris before engagement to avoid rounding. Do not use the ball end position for initial fastener torquing or final tightening — seat the fastener straight-on when applying full torque. Inspect the bit tip for wear regularly, as a worn ball end can slip and damage fastener heads.