Proto J5275HAM Hand Socket 12 Mm 6-point 3/8 Drive

Product Description

The PROTO J5275HAM is a 12 mm, 6-point hand socket designed for general fastener work in mechanical, industrial, and trade service applications. Built from alloy steel with a chrome-plated finish, this socket measures 1.75 inches in overall length and operates on a 3/8 inch drive. The 6-point geometry concentrates torque on the flat faces of a fastener, reducing the risk of rounding under load. It weighs 0.13 pounds, making it a compact, lightweight option suited for tight-clearance work. Licensed technicians and journeymen mechanics will find this socket appropriate for a wide range of metric fastener applications across equipment, vehicles, and machinery.

This socket is suited for both residential service and light commercial maintenance work where a 12 mm metric fastener is common. Typical applications include HVAC equipment service, plumbing fixture work, motor and compressor mounting hardware, and general mechanical assembly. The 3/8 inch drive accepts standard 3/8 inch ratchets, extensions, and flex handles. At 1.75 inches overall length, it fits in moderately restricted spaces without requiring a low-profile alternative. The chrome finish resists corrosion during routine shop and field use.

Key Features

• 12 mm socket size for metric fastener applications
• 6-point design reduces fastener rounding under torque load
• 3/8 inch drive compatible with standard ratchets and extensions
• Alloy steel construction for durability under repeated use
• Chrome-plated finish for corrosion resistance
• Compact 1.75 inch overall length for use in tighter spaces

Compatibility

Compatible with standard 3/8 inch drive ratchets, extensions, and torque wrenches. Meets ASME B107.5M standards for hand sockets.

Installation Notes

Install and remove using a 3/8 inch drive ratchet or torque wrench. Ensure the socket is fully seated on the fastener before applying torque to avoid slipping or fastener damage. This is not rated as tether capable and should not be used in overhead applications where a dropped tool presents a hazard. Inspect the socket for cracks or wear before each use and replace if deformation is visible.