Proto J5209MN 9 Mm 12-point 3/8 Drive Hand Socket

Product Description

The PROTO J5209MN is a standard-length intermediate hand socket designed for professional hand-tool applications. Built to a 9 mm socket size with a 12-point configuration and a 3/8 inch drive, it is suited for removing and installing fasteners in tight or recessed locations where a shallow socket falls short and a deep socket is unnecessary. Constructed from polished steel and manufactured to ASME B107.21 standards, this socket delivers the durability and dimensional precision that trade mechanics, maintenance technicians, and industrial service professionals expect from a daily-use hand tool.

This socket fits into general mechanical service work across automotive, industrial, and facility maintenance applications. The 12-point design allows engagement at multiple fastener positions, making it practical in restricted-access areas. At a standard length, it suits the majority of hex-head fasteners encountered in routine service without the bulk of a deep socket. It is appropriate for use with 3/8 inch drive ratchets, extensions, and torque wrenches in both shop and field settings.

Key Features

• 9 mm socket size with 12-point internal configuration for multi-position fastener engagement
• 3/8 inch drive compatible with standard ratchets, extensions, and torque wrenches
• Standard length design suits recessed fasteners where shallow sockets cannot reach
• Polished steel construction meets ASME B107.21 dimensional and performance standards
• Lifetime warranty coverage from the manufacturer

Compatibility

Designed as a standard OEM-style replacement or addition for 3/8 inch drive hand-tool sets requiring 9 mm metric socket coverage.

Installation Notes

This socket is installed and removed by hand in conjunction with a 3/8 inch drive ratchet or torque wrench. Ensure the drive tool is rated for the torque demands of the fastener being serviced. Inspect the socket for cracks or deformation before use and do not use impact drivers with a socket not rated for impact service.