Proto J5209N 9/32 Inch 12-point 3/8 Drive Hand Socket

Product Description

The PROTO J5209N is a 9/32 inch, 12-point intermediate hand socket designed for 3/8 inch drive ratchets and breaker bars. Built from polished steel to ASME B107.21 standards, this standard-length socket delivers reliable torque transfer on hex and 12-point fasteners in professional trade environments. At 1-15/64 inches overall length, it fits into tight spaces without sacrificing drive engagement. The polished finish resists surface corrosion and makes inspection easier. Mechanics, millwrights, pipefitters, and HVAC technicians reach for this size when working with smaller fasteners on equipment panels, brackets, and control assemblies.

The J5209N suits general mechanical service tasks across residential and commercial applications. It is appropriate for equipment assembly, panel work, and fastener removal wherever a 9/32 inch 12-point socket on a 3/8 inch drive is the right fit. The 12-point design allows more engagement positions in confined areas, reducing the need to reposition the ratchet between strokes. This socket is intended for hand-tool use and is not rated for impact driver applications.

Key Features

• 9/32 inch socket size fits standard 12-point fasteners
• 3/8 inch drive compatible with standard ratchets and breaker bars
• 12-point design provides 30-degree re-engagement increments for confined spaces
• Standard length at 1-15/64 inches overall for general service access
• Polished steel construction meets ASME B107.21
• Lifetime warranty coverage

Compatibility

Designed for use with 3/8 inch drive hand tools including ratchets, breaker bars, and extensions. Fits 9/32 inch 12-point fasteners in general mechanical service applications.

Installation Notes

Install and remove with hand tools only — this socket is not rated for use with impact wrenches or pneumatic drivers. Confirm drive size matches the ratchet or extension before applying torque. Inspect the socket for cracks or wear before each use, and replace if the drive tang or socket walls show deformation. Always ensure fastener engagement is full depth before turning to avoid rounding fastener heads.