Proto J5208MN 8mm 12-point 3/8 Drive Hand Socket

Product Description

The PROTO J5208MN is a standard-length intermediate hand socket designed for professional hand-tool use. It fits an 8 mm fastener and features a 12-point opening, which provides six engagement positions per revolution and works on both hex and double-hex fasteners. The socket is driven by a 3/8-inch drive ratchet or breaker bar. Constructed from polished steel and built to ASME B107.21 dimensional standards, this socket is a dependable addition to any service technician's socket set. HVAC, plumbing, and electrical trades will find this size useful when working with metric hardware on equipment panels, brackets, and access covers.

The J5208MN is suited for residential and light commercial service work where metric fasteners are common. It is appropriate for use in confined spaces given its standard overall length of 1-17/64 inches. Typical applications include equipment service panels, motor mounting hardware, and control box fasteners found across HVAC systems, pumps, and electrical enclosures. The 3/8-inch drive size makes it compatible with the most widely carried drive sets in the trade.

Key Features

• 8 mm socket size for metric fastener applications
• 12-point design allows engagement in tight or restricted positions
• 3/8-inch drive fits standard ratchets and torque wrenches
• Polished steel construction for corrosion resistance and durability
• Standard length at 1-17/64 inches overall for versatile reach
• Meets ASME B107.21 dimensional standards

Compatibility

Designed as a standard-length 3/8-inch drive hand socket compatible with 3/8-inch drive ratchets, extensions, and torque wrenches following ASME B107.21 specifications.

Installation Notes

Install and remove with a 3/8-inch drive ratchet, breaker bar, or torque wrench. Ensure the socket is fully seated on the fastener before applying torque to avoid rounding the fastener head. Inspect the socket for cracks or deformation before each use, and remove from service if damage is found. Not rated for impact driver use.