Proto J47045TM 4mm 12-point 1/4 Drive Hand Socket

Product Description

The PROTO J47045TM is a 4 mm, 12-point hand socket designed for use with a 1/4-inch drive ratchet or extension. Built from alloy steel with a chrome-plated finish, it delivers the corrosion resistance and surface hardness required for repetitive shop and field use. The overall length is 7/8 inches, placing it in the standard-length category. This socket meets ASME B107.5M standards for hand socket tools. Mechanics, maintenance technicians, and industrial trades professionals will find this a reliable fit for metric fastener work requiring a 12-point contact pattern.

This socket is suited for light-duty metric fastener applications where a 1/4-inch drive is appropriate. The 12-point geometry allows engagement from more ratchet positions, which is an advantage in confined spaces or when swing arc is limited. Standard-length design makes it compatible with most 1/4-inch drive ratchets, sliding T-handles, and extensions. It is appropriate for automotive, HVAC equipment, electrical panel, and general mechanical assembly work involving 4 mm fasteners.

Key Features

• 4 mm socket size for metric fastener applications
• 12-point design allows engagement every 30 degrees for easier positioning in tight spaces
• 1/4-inch drive compatible with standard ratchets, T-handles, and extensions
• Alloy steel construction with chrome-plated finish for corrosion resistance
• Standard length at 7/8 inches overall
• Meets ASME B107.5M standards for hand sockets
• Backed by a limited lifetime warranty

Compatibility

Designed as an OEM-style replacement or addition to any 1/4-inch drive hand socket set requiring 4 mm metric coverage.

Installation Notes

Inspect the socket and drive tool for wear or cracks before use. Ensure the drive detent fully seats in the socket drive recess before applying torque. Do not use hand sockets with impact drivers. Store with other 1/4-inch drive sockets to prevent mixing with incompatible drive sizes.