Proto J5217 Hand Socket 17/32 in 12-point 3/8 Drive

Product Description

The PROTO J5217 is a 12-point hand socket designed for professional fastener work in mechanical, HVAC, plumbing, and electrical trade applications. Built from alloy steel with a chrome finish, this 17/32 inch socket accepts a 3/8 inch square drive and delivers reliable torque transfer on hex and 12-point fasteners. The standard-length design measures 1.125 inches overall, making it a practical choice for accessible fastener locations where depth is not a constraint. It meets ASME B107.1 standards and carries a limited lifetime warranty.

This socket fits standard 3/8 inch drive ratchets, extensions, and torque wrenches commonly used by HVAC technicians, plumbers, and electricians on equipment panels, structural fasteners, and mechanical assemblies. The 17/32 inch size covers a common imperial fastener dimension found on equipment housings, brackets, and utility hardware. The 12-point geometry allows engagement at 30-degree increments, which is useful in moderately confined spaces where swing arc is limited.

Key Features

• 17/32 inch socket size for imperial fasteners
• 12-point profile allows engagement every 30 degrees for use in tight spaces
• 3/8 inch square drive compatible with standard ratchets, extensions, and torque wrenches
• Alloy steel construction with chrome finish for corrosion resistance
• Standard length at 1.125 inches overall for general-access fastener locations
• Meets ASME B107.1 socket standards
• Limited lifetime warranty

Compatibility

Compatible with 3/8 inch square drive ratchets, breaker bars, extensions, and torque wrenches following standard ASME drive geometry.

Installation Notes

Ensure the drive tool and socket are fully seated before applying torque to prevent slippage or rounding of the fastener. Inspect the socket for cracks or wear before each use, particularly after high-torque applications. This socket is not tether capable and should not be used in elevated or overhead work environments where a dropped tool presents a hazard.