Proto J5011M Deep Hand Socket 11mm 12-point 3/8 Drive

Product Description

The PROTO J5011M is a deep hand socket designed for 3/8-inch drive ratchets and breaker bars. It fits an 11 mm fastener and features a 12-point internal geometry that engages hex and double-hex fastener heads. The socket is machined from alloy steel and finished with a chrome plating that resists corrosion and surface wear. At 2.125 inches overall length, the deep profile provides the clearance needed to reach recessed or stud-mounted fasteners that a standard-depth socket cannot access. Licensed mechanics, maintenance technicians, and industrial service pros reach for this type of socket on engine work, suspension assemblies, and equipment maintenance tasks where fastener depth demands it.

This socket fits standard 3/8-inch drive tools and is suited for both automotive and industrial hand-tool applications. The 12-point configuration allows 30-degree incremental engagement, useful in confined spaces where ratchet swing arc is limited. The deep length is particularly practical for reaching lug nuts, recessed bolts on engine components, and fasteners seated inside bossed castings or tubing. The chrome finish keeps the socket easy to clean and visible in a tool tray. Meets ASME B107.5 standards for hand socket dimensions and performance.

Key Features

• 11 mm socket size fits metric fasteners on engines, chassis, and equipment
• 12-point design allows engagement at 30-degree intervals in tight spaces
• Deep length of 2.125 inches reaches recessed and stud-mounted bolts
• Alloy steel construction provides strength under high-torque hand-drive use
• Chrome plating resists corrosion and simplifies cleaning
• Meets ASME B107.5 dimensional and performance standards

Compatibility

Designed for use with standard 3/8-inch drive ratchets, breaker bars, and extensions. Compatible with any 3/8-inch square drive hand tool.

Installation Notes

Install and remove by a qualified mechanic or technician using standard 3/8-inch drive hand tools. Confirm the socket is fully seated on the fastener head before applying torque to avoid rounding. Do not use impact drivers with this hand-rated socket unless it is specifically rated for impact use. Inspect the socket for cracks or deformation before each use and remove from service if damaged.