Proto J4777TA 9/32 in 12-point 1/4 in Drive Hand Socket

Product Description

The PROTO J4777TA is a 9/32-inch, 12-point hand socket designed for 1/4-inch drive ratchets and extensions. Machined from alloy steel with a chrome-plated finish, it delivers reliable corrosion resistance in shop and field conditions. The 12-point design engages fastener flats at multiple positions, reducing the need to reposition the socket in tight spaces. At 1-1/4 inches overall length and approximately 0.04 pounds, it is suited for light-torque fastening tasks where compact tooling is required. This socket conforms to ASME B107.1 standards for hand socket dimensions and performance. It is appropriate for use by mechanics, HVAC technicians, electricians, and other trade professionals who require a small-drive socket for precision work.

The J4777TA is intended for hand-tool use in applications requiring a 9/32-inch fastener engagement with a 1/4-inch drive system. Typical install scenarios include panel fasteners, equipment access covers, small mechanical assemblies, and light-duty fastening tasks encountered in HVAC, electrical, and general mechanical service work. The universal flex-style socket type allows for angle engagement, making it useful in restricted access areas where a straight drive approach is not possible.

Key Features

• 9/32-inch socket size for precise fastener engagement
• 12-point design allows multiple engagement positions per revolution
• 1/4-inch drive compatibility fits standard ratchets and extensions
• Universal flex socket type for angled access in tight spaces
• Alloy steel construction with chrome-plated finish for corrosion resistance
• Conforms to ASME B107.1 hand socket standards

Compatibility

Designed for use with standard 1/4-inch drive ratchets, extensions, and flex handles. Not tether capable; verify tethering requirements before use in elevated or overhead work environments.

Installation Notes

Install and remove using a standard 1/4-inch drive ratchet or hand driver. Ensure the fastener head is fully seated in the socket before applying torque to prevent rounding. Inspect the socket for cracks or wear before each use. Not rated for impact driver use; use impact-rated sockets for pneumatic or electric impact tools.