Proto J5211MH 3/8 Drive 11mm 6-point Hand Socket

Product Description

The PROTO J5211MH is a 3/8-inch drive, 6-point hand socket sized for 11 mm fasteners. It features a chrome-plated finish and a standard-length profile, making it a straightforward addition to any professional hand-tool set. The 6-point contact geometry reduces fastener rounding compared to 12-point designs, which is a critical advantage when working with corroded or tight hardware. At 0.06 pounds, the socket is lightweight without sacrificing the structural integrity expected from a trade-grade drive tool. HVAC technicians, plumbers, electricians, and general mechanical trades will find this socket a reliable fit for metric fastener work in confined or open access areas.

This socket is suited for residential and light commercial service applications where 11 mm metric fasteners are common. Typical uses include equipment panel removal, bracket fastening, and component replacement tasks across HVAC systems, plumbing fixtures, and electrical enclosures. Its standard-length body fits comfortably with most 3/8-inch drive ratchets, extensions, and breaker bars available in a professional toolkit.

Key Features

• 11 mm socket size fits metric fasteners precisely
• 3/8-inch drive for broad compatibility with standard ratchets and extensions
• 6-point contact design reduces risk of rounding fastener heads
• Chrome-plated finish resists corrosion and simplifies cleaning
• Standard-length profile suits most open and semi-restricted access situations
• Lightweight at 0.06 pounds for reduced hand fatigue during extended use

Compatibility

Designed as a standard 3/8-inch drive hand socket for use with any 3/8-inch drive ratchet, torque wrench, extension, or adapter in a professional or trade tool inventory.

Installation Notes

This socket is installed and removed by hand using a compatible 3/8-inch drive tool. Ensure the drive tool is rated for the torque requirements of the fastener application before use. When working on energized electrical panels or pressurized systems, follow all applicable safety lockout and shutoff procedures before applying any hand tools. Inspect the socket for cracks or wear before each use and replace if the chrome finish shows significant flaking or if the drive square shows deformation.