Proto J77515MP Impact Socket 3/8 in Drive 15mm 12-pt

Product Description

The PROTO J77515MP is a 12-point impact socket designed for demanding fastening and removal tasks in professional trade environments. Built from alloy steel, it accepts a 3/8 inch drive and fits a 15mm fastener head. The overall length is 2-3/32 inches, making it compact enough for tight work areas while maintaining the structural integrity needed for high-torque impact use. The 12-point configuration provides more engagement positions on fastener heads, useful when working in restricted swing situations. Licensed electricians, HVAC technicians, plumbers, and general mechanical trades rely on impact-rated sockets like this for pneumatic and cordless impact wrench applications where chrome sockets would crack or shatter.

The J77515MP fits standard 3/8 inch drive impact wrenches and impact drivers with the appropriate adapter. The 15mm size is commonly encountered on automotive, HVAC equipment, and mechanical system fasteners across residential and light commercial service work. Its universal style suits a wide range of fastening applications where a metric socket is required. The 12-point design allows entry from multiple positions, which is practical on machinery with limited access around bolt heads.

Key Features

• Alloy steel construction rated for impact tool use
• 3/8 inch drive fits standard impact wrenches and adapters
• 15mm 12-point socket geometry for more engagement positions
• 2-3/32 inch overall length suits confined fastener locations
• Meets ASME B107.2 specification for impact sockets

Compatibility

Designed as an OEM-style replacement and standard-fit impact socket for 3/8 inch drive impact wrenches and ratchets requiring a 15mm metric socket.

Installation Notes

Install and remove using a 3/8 inch drive impact wrench or ratchet only — do not use this socket with a standard chrome drive tool. Ensure the socket is fully seated on the fastener head before applying torque to prevent rounding. Inspect the socket for cracks or wear before each use, and retire any socket showing deformation or stress fractures. Always wear appropriate eye protection when operating impact tools.