Proto J5019MH Deep Hand Socket 19mm 6-point 3/8 Drive

Product Description

The PROTO J5019MH is a deep hand socket designed for 3/8 inch drive ratchets and extensions. It features a 19 mm socket opening with a 6-point contact pattern, which distributes torque evenly across fastener flats and reduces the risk of rounding worn or corroded hardware. Constructed from alloy steel with a chrome-plated finish, the socket measures 2.75 inches in overall length. It meets ASME B107.110-2012 and AS4984A standards. Mechanics, maintenance technicians, and service professionals install and use this socket in general-purpose hand-tool applications where a deep reach is required to access recessed fasteners.

This socket is suited for automotive, industrial, and mechanical service work where a 19 mm fastener sits below a surface, on a stud, or in a recessed cavity that a standard-length socket cannot reach. The 6-point design is preferred over 12-point profiles when working with heavily torqued, rusted, or impact-driven fasteners. The 3/8 inch drive size makes it compatible with a wide range of mid-size ratchets, torque wrenches, and extensions common in both shop and field toolkits.

Key Features

• 19 mm socket size fits standard metric fasteners
• 6-point contact pattern reduces fastener rounding under load
• Deep length at 2.75 inches total for recessed or studded fastener access
• 3/8 inch drive for use with mid-range ratchets, extensions, and torque wrenches
• Alloy steel construction with chrome-plated finish for corrosion resistance
• Meets ASME B107.110-2012 and AS4984A standards

Compatibility

Designed as an OEM-style replacement or standard addition compatible with 3/8 inch drive hand-tool sets requiring a deep 19 mm metric socket.

Installation Notes

This socket is installed by mechanics and technicians using standard 3/8 inch drive ratchets, torque wrenches, or extension bars. Ensure the socket is fully seated on the fastener before applying torque to avoid slippage. Inspect the socket and drive square for wear or cracking before use. This tool is not rated for impact driver use unless the product is specifically designated as an impact socket.