Proto J77419MP Impact Socket 3/8 in Drive 19mm 6-point

Product Description

The PROTO J77419MP is a 3/8 inch drive, 19mm impact socket designed for use with impact wrenches and air-driven tools in professional trade environments. Built from alloy steel, it features a 6-point hex drive geometry that concentrates force on the flats of a fastener rather than the corners, reducing the risk of rounding under high-torque impact conditions. The overall length is 2-3/32 inches, making it a compact, durable option for tight-access fastener removal and installation. It meets ASME B107.2 standards. Automotive technicians, industrial mechanics, and maintenance professionals are the primary installers of this socket.

This socket is suited for residential and commercial mechanical work where impact-rated tooling is required. Common applications include automotive suspension work, heavy equipment maintenance, and general assembly or disassembly tasks involving 19mm fasteners. The 3/8 inch drive size fits mid-range impact wrenches and ratchets commonly found in professional tool sets. The universal style designation indicates it is appropriate for a broad range of fastener applications without specialization to a single system type.

Key Features

• 3/8 inch drive fits standard mid-range impact wrenches and ratchets
• 19mm socket size for metric fastener applications
• 6-point hex drive geometry reduces fastener rounding under high torque
• Alloy steel construction rated for impact tool use
• Meets ASME B107.2 specification for impact sockets
• Compact 2-3/32 inch overall length for access in tighter spaces

Compatibility

Designed as an OEM-style impact socket for use with 3/8 inch drive impact wrenches, air ratchets, and hand ratchets requiring a 19mm 6-point metric socket.

Installation Notes

Impact sockets should only be used with impact-rated drive tools. Do not use standard chrome hand-tool sockets on impact wrenches, as the metallurgy differs and fracture risk increases. Inspect the socket for cracks or deformation before each use and replace any damaged socket immediately. Always ensure the drive detent or retaining pin is fully engaged before applying torque.