Proto J4709LTM Deep Hand Socket 9 Mm 12-point

Product Description

The PROTO J4709LTM is a 9 mm, 12-point deep hand socket designed for use with a 1/4-inch drive ratchet or extension. Built from alloy steel with a chrome-plated finish, it delivers the reach needed to seat fasteners that are recessed or have long shanks. At roughly 1-63/64 inches in overall length, this socket falls in the deep category, making it useful when standard-length sockets cannot fully engage the fastener. It is a manual hand tool intended for professional mechanics, maintenance technicians, and trade professionals working with metric fasteners.

This socket is suited for automotive, HVAC equipment service, industrial maintenance, and general mechanical repair where 9 mm metric fasteners are encountered. The 12-point design allows the socket to engage fasteners at 30-degree intervals, which is useful in tight quarters where full ratchet swing is limited. It works with standard 1/4-inch drive hand tools including ratchets, breaker bars, and torque wrenches. The deep length is particularly practical for recessed bolt heads, nuts on threaded studs, and spark plug-style applications.

Key Features

• 9 mm socket size for common metric fastener applications
• 12-point design engages fasteners at 30-degree intervals for use in confined spaces
• Deep length at 1-63/64 inches overall to reach recessed or long-shank fasteners
• 1/4-inch drive compatibility with standard hand tool sets
• Alloy steel construction for durability under hand-tool torque loads
• Chrome-plated finish for corrosion resistance and easy cleaning
• Meets AS4984A and ASME B107.110-2012 standards

Compatibility

Designed for use with standard 1/4-inch drive hand tools including ratchets, extensions, and torque wrenches. Compatible with any 1/4-inch drive system requiring a 9 mm deep socket.

Installation Notes

This is a hand tool intended for manual use only — do not use with impact drivers or air tools unless the socket is rated for impact service. Ensure the drive tang is fully seated in the socket before applying torque. Inspect the socket for cracks or deformation before each use, and replace if any damage is found. Follow applicable torque specifications for the fastener being serviced.