Proto J5275HA 1/2 Inch 6-point Flex Hand Socket 3/8 Drive

Product Description

The PROTO J5275HA is a 1/2-inch, 6-point universal flex hand socket with a 3/8-inch drive, built for professional use in tight or angled fastener applications. Constructed from alloy steel with a chrome-plated finish, this socket delivers corrosion resistance and long service life under daily shop and field conditions. The universal flex design allows the socket to pivot, giving technicians access to fasteners that a rigid socket cannot reach. At 1-25/32 inches overall length, it fits standard 3/8-inch drive ratchets and extension bars. It meets ASME B107.1 standards, making it appropriate for use in regulated trade and industrial environments.

This socket is suited for automotive, HVAC, plumbing, and general mechanical service work where a 1/2-inch fastener must be driven at an angle or in a confined space. The flex joint is particularly useful when working around engine components, equipment panels, or structural framing where direct inline access is not available. It is a standard addition to a journeyman-level socket set and works with any 3/8-inch drive torque wrench, ratchet, or breaker bar.

Key Features

• Universal flex design allows off-angle drive on 1/2-inch fasteners
• 6-point socket geometry reduces fastener rounding under high torque
• Alloy steel construction for strength and durability in heavy-use conditions
• Chrome-plated finish resists corrosion and simplifies cleaning
• Meets ASME B107.1 standards for hand socket tools
• 3/8-inch drive compatible with standard ratchets, extensions, and torque wrenches

Compatibility

Designed for use with standard 3/8-inch drive ratchets, torque wrenches, and extension bars. Fits 1/2-inch hex fasteners in automotive, mechanical, and trade service applications.

Installation Notes

This socket is installed and removed by hand as part of a 3/8-inch drive socket set. Ensure the drive tool is rated for the torque required by the fastener application before use. When using a torque wrench, account for any extension or flex adapter in the torque calculation. Inspect the flex joint for wear or play periodically, as a worn pivot can affect torque accuracy.