Proto J5404 Phillips Screwdriver Socket 1/2 in Drive

Product Description

The PROTO J5404 is a Phillips screwdriver socket designed for 1/2 inch drive ratchets and impact wrenches. It accepts a No. 4 Phillips tip and features a 4-point drive configuration suited for driving large Phillips-head fasteners in structural, mechanical, and equipment assembly applications. The overall length measures approximately 2.19 inches, and the socket body measures 0.8 inches in height and 0.8 inches in width. Weighing 0.19 pounds, this socket is built for professional use in maintenance, repair, and fabrication settings where a standard bit or hand screwdriver lacks the torque capacity needed.

This socket is intended for use with 1/2 inch drive hand ratchets, torque wrenches, or pneumatic and electric impact tools. It is well suited for heavy-duty fastener driving tasks in industrial maintenance, commercial construction, and equipment assembly. The No. 4 Phillips point size addresses large-head fasteners commonly found in structural panels, heavy equipment, and commercial fixtures. Electricians, millwrights, pipefitters, and general maintenance technicians will find this socket useful when consistent, high-torque Phillips fastener driving is required.

Key Features

• 1/2 inch drive compatibility for use with standard ratchets and impact wrenches
• No. 4 Phillips point engages large Phillips-head fasteners securely
• 4-point drive socket configuration for positive engagement and torque transfer
• Compact overall length of approximately 2.19 inches for access in confined spaces
• Lightweight at 0.19 pounds for extended use without added tool fatigue

Compatibility

Designed as an OEM-style replacement or professional-grade addition for use with standard 1/2 inch drive socket sets and drive tools requiring a No. 4 Phillips screwdriver socket.

Installation Notes

This socket is installed and used by maintenance technicians, electricians, millwrights, and general tradespeople working with 1/2 inch drive tool systems. Ensure the drive tool is set to the correct torque or rotation direction before engaging the fastener. Inspect the Phillips tip for wear before use, as a worn point can strip fastener heads. Follow applicable workplace safety standards and tool manufacturer guidelines when using power-driven socket tools.