Proto J5217MN 17mm 12-point 3/8 Drive Hand Socket

Product Description

The PROTO J5217MN is a 17 mm, 12-point intermediate hand socket designed for 3/8-inch drive ratchets and breaker bars. Built from polished steel, it meets ASME B107.21 standards for hand socket tools. The 12-point design allows engagement at 30-degree increments, giving technicians more positioning options in tight spaces. At 1-25/32 inches in overall length, this is a standard-length socket suited for general fastener work across a wide range of service environments. Licensed mechanics, HVAC technicians, plumbers, electricians, and general maintenance professionals will find it a reliable addition to a 3/8-inch drive socket set.

This socket is intended for hand-tool use on metric fasteners requiring a 17 mm socket. It is well suited for both residential and light commercial maintenance tasks, including equipment servicing, panel work, and mechanical assembly. The 3/8-inch drive size makes it compatible with the broad range of 3/8-inch drive ratchets, extensions, and torque wrenches commonly found in trade tool kits. It is not tether capable and is packaged as a single unit.

Key Features

• 17 mm socket size fits standard metric fasteners
• 12-point design allows engagement every 30 degrees for use in confined areas
• 3/8-inch drive compatible with common ratchets, extensions, and torque wrenches
• Polished steel construction meets ASME B107.21 standards
• Standard length at 1-25/32 inches overall for general-purpose fastener access
• Lifetime warranty backed by the manufacturer

Compatibility

Designed as a standard OEM-style hand socket for use with 3/8-inch drive hand tools. Compatible with any 3/8-inch drive ratchet, breaker bar, extension, or torque wrench accepting standard-size sockets.

Installation Notes

Install and remove fasteners using appropriate 3/8-inch drive hand tools only. De-energize or lock out equipment before performing mechanical service on electrical or powered systems per applicable safety codes. Inspect the socket for cracks or wear before each use and replace if damage is found. Do not use impact drivers or pneumatic tools with hand-rated sockets.