Proto J5272AM 9mm 12-point 3/8 Drive Hand Socket

Product Description

The PROTO J5272AM is a 9 mm, 12-point hand socket designed for professional use in mechanical, industrial, and trade service applications. Built from alloy steel with a chrome-plated finish, this socket measures 1-3/4 inches in overall length and accepts a 3/8 inch drive. The 12-point configuration allows engagement at multiple angles, reducing the need to reposition the drive tool in tight spaces. It meets ASME B107.5M standards for hand socket dimensions and performance. Machinists, automotive technicians, and industrial maintenance professionals rely on this type of socket for fastener removal and installation across a wide range of equipment.

This socket is suited for both shop and field use wherever a 9 mm fastener and a 3/8 inch drive ratchet, breaker bar, or torque wrench are required. The chrome finish resists corrosion during normal service conditions. Its compact 1-3/4 inch length makes it practical in moderately confined fastener locations. It is sold individually and is appropriate for professional toolkits requiring metric hand sockets in common drive sizes.

Key Features

• 9 mm socket size for metric fastener applications
• 12-point design allows engagement at 30-degree increments for use in restricted spaces
• 3/8 inch drive compatible with standard ratchets, extensions, and torque wrenches
• Alloy steel construction meets ASME B107.5M dimensional and performance standards
• Chrome-plated finish provides corrosion resistance under normal use conditions
• Overall length of 1-3/4 inches suits a broad range of fastener access scenarios

Compatibility

Designed for use with standard 3/8 inch drive ratchets, breaker bars, extensions, and torque wrenches accepting metric hand sockets.

Installation Notes

This socket should be installed onto a 3/8 inch drive tool before engaging the fastener. Inspect the socket and drive tool for wear, cracks, or deformation before each use. Do not use hand sockets with impact wrenches unless the socket is rated for impact service. Worn or damaged sockets should be removed from service immediately.