Proto J5213MN 13mm 12-point 3/8 Drive Hand Socket

Product Description

The PROTO J5213MN is a 13 mm, 12-point intermediate hand socket designed for 3/8-inch drive ratchets and breaker bars. Built from steel with a polished finish, it meets ASME B107.21 standards for hand socket performance and dimensional accuracy. The standard-length design measures 1-25/32 inches overall, making it a practical choice for general fastener work in tight but accessible spaces. Licensed mechanics, maintenance technicians, and professional tradespeople rely on this type of socket for routine bolt and nut removal across a wide range of applications.

This socket suits residential, commercial, and light industrial service work where a 13 mm fastener is common. It is a standard size frequently encountered in mechanical, HVAC equipment panels, electrical enclosures, and plumbing fixture hardware. The 12-point profile allows the socket to engage fasteners at 30-degree increments, providing more ratchet positions in confined areas compared to a 6-point design. It is compatible with any standard 3/8-inch drive ratchet, extension, or torque wrench.

Key Features

• 13 mm socket size fits common metric fasteners across mechanical and trade applications
• 12-point design engages at 30-degree increments for better access in tight spaces
• 3/8-inch drive accepts standard ratchets, extensions, and torque wrenches
• Steel construction with polished finish for durability and corrosion resistance
• Meets ASME B107.21 standards for hand socket dimensional and performance requirements
• Standard length at 1-25/32 inches overall for everyday fastener work

Compatibility

Designed for use with 3/8-inch drive ratchets, extensions, and torque wrenches. Fits any 3/8-inch drive tool following standard square drive dimensions per ASME B107.21.

Installation Notes

Installation and removal of fasteners with this socket should be performed by qualified tradespeople or mechanics familiar with proper torque requirements for the specific application. Always confirm the fastener size before applying force to avoid rounding or damaging hardware. Inspect the socket for cracks or wear before each use, and do not use impact drivers with a hand socket not rated for impact service.