Proto J77512MP Impact Socket 3/8 in Drive 12mm

Product Description

The PROTO J77512MP is a 12mm, 12-point impact socket with a 3/8 inch drive, designed for use with impact wrenches and air tools in professional trade environments. Built from alloy steel, it meets ASME B107.2 specifications, making it a reliable choice for fastener removal and installation under high-torque conditions. The overall length of 2 inches suits standard reach applications. This socket is intended for mechanics, maintenance technicians, and trade professionals who require a durable, spec-compliant tool for daily service work.

This socket fits standard 3/8 inch drive impact wrenches and ratchets. It is suited for automotive, mechanical, and general maintenance applications where 12mm fasteners are common. The 12-point configuration allows engagement from multiple angles, which is useful in tight or awkward access situations. It is appropriate for both shop and field use across residential, commercial, and industrial service scenarios.

Key Features

• 3/8 inch drive compatible with standard impact wrenches and ratchets
• 12mm socket size for metric fastener applications
• 12-point design allows multiple engagement angles in confined spaces
• Alloy steel construction for impact-rated durability
• Meets ASME B107.2 specification for socket dimensions and performance
• Compact 2 inch overall length for standard reach applications

Compatibility

Designed as an OEM-style replacement or direct-fit socket for 3/8 inch drive impact tools requiring a 12mm, 12-point metric socket.

Installation Notes

Install and remove this socket only when the tool is powered down or the air supply is disconnected. Inspect the socket for cracks or deformation before each use, and do not use it with a hand ratchet if it is rated exclusively for impact service. Mechanics and maintenance technicians should follow applicable workplace safety standards when operating impact tools.