Proto J5312H Deep Hand Socket 3/8 in 6-point Chrome

Product Description

The PROTO J5312H is a deep hand socket designed for professional trade use in mechanical, HVAC, plumbing, and electrical service applications. It features a 3/8 inch socket size with a 1/2 inch drive and a 6-point contact geometry that reduces fastener rounding under high torque. The chrome-plated finish resists corrosion and provides a clean surface that is easy to wipe down in the field. At 3.3 inches in length, the deep profile allows technicians to reach fasteners on long bolts, studs, and recessed hardware that standard-depth sockets cannot access. It meets ASME B107.1 standards for hand sockets, making it appropriate for use in regulated trade environments.

This socket is suited for residential and commercial service work across multiple trades. HVAC technicians use deep sockets to reach compressor hardware, blower assembly bolts, and electrical panel fasteners. Plumbers and pipefitters use them on fixture supply connections and valve packing nuts. General mechanical and maintenance technicians will find the deep reach useful on equipment with extended stud hardware. The 1/2 inch drive accepts standard 1/2 inch ratchets, breaker bars, and torque wrenches commonly found in trade toolboxes.

Key Features

• 3/8 inch socket size with 1/2 inch drive for compatibility with standard drive tools
• 6-point contact geometry reduces the risk of rounding fastener heads under load
• Deep length at 3.3 inches provides reach for recessed and long-stud fasteners
• Chrome-plated finish resists corrosion and simplifies cleaning
• Meets ASME B107.1 standards for hand sockets

Compatibility

Designed as an OEM-style hand socket for use with standard 1/2 inch drive ratchets, breaker bars, extensions, and torque wrenches in professional trade and mechanical service applications.

Installation Notes

This socket is installed and removed by hand tool technicians across mechanical, HVAC, electrical, and plumbing trades. Before using a socket on energized equipment or pressurized systems, de-energize circuits at the breaker and relieve system pressure per applicable codes. Inspect the socket for cracks or wear before applying torque. Do not use impact drivers with hand-rated sockets unless the socket is explicitly rated for impact use.