Proto J5012B Deep Hand Socket 3/8 in 12-point

Product Description

The PROTO J5012B is a deep hand socket designed for 3/8 inch drive ratchets and extensions. It features a 12-point internal geometry that engages fastener flats with multiple contact points, reducing the risk of rounding in tight or corroded hex heads. The socket body is machined from alloy steel and finished in black oxide for corrosion resistance. 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. This tool is suited for mechanical and maintenance trades working on HVAC equipment, plumbing fixtures, and general mechanical assemblies.

The J5012B is appropriate for residential and light commercial service work where a 3/8 inch drive hand socket is the standard tool of choice. The deep length makes it well suited for spark plug removal, bolt-on bracket work, and any fastener that sits below a surrounding surface or extends on a threaded stud. It is used by HVAC technicians, plumbers, and general maintenance mechanics working in confined equipment compartments.

Key Features

• 3/8 inch drive and 3/8 inch socket size for common fastener applications
• 12-point design provides multiple engagement positions and reduces fastener rounding
• Deep length of 2.125 inches overall for recessed or stud-mounted fastener reach
• Alloy steel construction for durability under hand-tool torque loads
• Black oxide finish provides corrosion resistance in service environments
• Meets ASME B107.1 standards for hand socket quality and dimensional tolerances

Compatibility

Designed for use with standard 3/8 inch drive ratchets, extensions, and torque wrenches. Compatible with any tool accepting a 3/8 inch square drive connection.

Installation Notes

Alloy steel hand sockets are intended for manual hand-tool use only and should not be used with impact drivers or air tools unless explicitly rated for impact service. Inspect the socket for cracks or deformation before each use. Apply appropriate torque for the fastener size and material being worked to avoid fastener or socket damage.