Proto J5212M 12mm 12-point 3/8 Drive Hand Socket

Product Description

The PROTO J5212M is a 12mm, 12-point hand socket designed for 3/8-inch drive ratchets and extensions. Built to ASME B107.5 standards, it features a chrome-plated finish that resists corrosion and simplifies cleaning in shop environments. The standard-length design fits the majority of fastener access situations encountered in mechanical, industrial, and maintenance applications. At 0.07 pounds, it is a compact, lightweight tool suited for everyday use by mechanics and tradespeople who require reliable hand-tool performance.

This socket is intended for use in automotive, industrial, and general mechanical maintenance applications where a 3/8-inch drive socket set is the primary tool platform. The 12-point configuration allows engagement from multiple angles, which is useful when working in confined spaces with limited ratchet swing. It is sold individually and is compatible with standard 3/8-inch drive ratchets, breaker bars, torque wrenches, and extensions commonly found in professional tool inventories.

Key Features

• 12mm socket size for metric fastener applications
• 12-point design allows engagement at 30-degree intervals for use in tight spaces
• 3/8-inch drive compatible with standard ratchets, torque wrenches, and extensions
• Chrome-plated finish for corrosion resistance and easy cleaning
• Standard length profile suits most general-purpose fastener access
• Meets ASME B107.5 standards for hand socket performance

Compatibility

Designed for use with standard 3/8-inch drive ratchets, breaker bars, torque wrenches, and extensions as a direct-fit metric hand socket.

Installation Notes

This socket is installed and removed by hand in combination with a 3/8-inch drive ratchet or torque wrench. Inspect the socket for cracks or rounding before use and replace if drive or point surfaces show wear. Do not use hand sockets with impact drivers unless the socket is specifically rated for impact use.