Proto J4718L Deep Hand Socket 9/16 in 6-pt 1/4 Drive

Product Description

The PROTO J4718L is a deep hand socket designed for manual drive applications requiring a 9/16 inch fastener engagement with a 1/4 inch square drive. The 6-point internal geometry delivers solid contact across the full flat faces of a hex fastener, reducing rounding under torque. The chrome-plated finish resists corrosion and simplifies cleanup in shop and field environments. At 0.14 pounds and a compact deep-length profile, this socket is well suited for confined fastener access where a standard-depth socket falls short. Mechanics, maintenance technicians, and trade professionals working on HVAC equipment, electrical panels, plumbing fixtures, and general mechanical assemblies will find this socket a practical addition to a 1/4 inch drive set.

This deep socket is intended for hand-tool use with 1/4 inch drive ratchets, extension bars, and T-handles. The deep-length body allows the socket to seat fully over fasteners with extended shanks, studs, or recessed bolt heads. It is suited for light-duty to medium-duty applications in residential and light commercial service work, including appliance repair, cabinet and bracket hardware, and equipment panel fasteners where a 9/16 inch hex head is encountered.

Key Features

• 9/16 inch socket size for direct hex fastener engagement
• 1/4 inch square drive compatible with standard ratchets and extensions
• 6-point geometry reduces fastener rounding compared to 12-point sockets
• Deep-length body seats over studded, recessed, or extended fasteners
• Chrome-plated finish provides corrosion resistance and easy cleaning

Compatibility

Designed as an OEM-style hand socket for use with standard 1/4 inch drive ratchets, extensions, and T-handles accepting 9/16 inch hex fasteners in deep-reach applications.

Installation Notes

This socket is intended for hand-drive use only with a 1/4 inch drive ratchet or handle. Do not use with impact drivers or air tools, as hand sockets are not rated for impact service and may crack or shatter under impact loads. Ensure the socket is fully seated on the fastener before applying torque to avoid slippage and fastener rounding.