Proto J5421 Hand Socket 21/32 in 12-point 1/2 in Drive

Product Description

The PROTO J5421 is a 12-point hand socket designed for 1/2 inch drive ratchets and breaker bars. It accepts a 21/32 inch fastener and is built from alloy steel with a chrome-plated finish for corrosion resistance and easy cleaning. At 1.5 inches overall length, this is a standard-length socket suited to general fastener work. Manufactured to ASME B107.110-2012 standards, the J5421 is appropriate for use by mechanics, millwrights, maintenance technicians, and any trade professional working with 1/2 inch drive tooling.

This socket fits into general mechanical and industrial maintenance applications where a 21/32 inch fastener is encountered. The 12-point geometry engages hex fasteners at multiple orientations, which is useful in tight or awkward positions where full swing on a ratchet handle is limited. Standard length makes it compatible with most 1/2 inch drive ratchets, extensions, and torque wrenches used in shop and field environments.

Key Features

• 21/32 inch socket size for precise fastener engagement
• 12-point design allows engagement at multiple angles in confined spaces
• 1/2 inch drive compatible with standard ratchets, extensions, and torque wrenches
• Alloy steel construction for strength and durability under torque
• Chrome-plated finish resists corrosion and simplifies cleaning
• Meets ASME B107.110-2012 standards for hand socket tooling

Compatibility

Designed for use with standard 1/2 inch drive ratchets, breaker bars, extensions, and torque wrenches. Fits hex fasteners with a 21/32 inch head size.

Installation Notes

Ensure the drive tool is rated for the torque requirements of the application before use. Inspect the socket for cracks, wear, or rounding before each use and remove from service if damaged. This socket is not tether capable and should not be used in overhead or elevated applications where a dropped tool would create a hazard without an independent tool-retention solution.