Proto J7211MHF Impact Socket 3/8 in Drive 11mm Hex

Product Description

The PROTO J7211MHF is a 6-point hex drive impact socket designed for demanding fastener work in industrial, mechanical, and trade service environments. Built from alloy steel, it accepts an 11mm fastener and mounts to a 3/8 inch drive impact wrench or ratchet. The magnetic style socket retains fasteners during positioning, reducing dropped hardware in tight spaces. Overall length is 1-5/32 inches. Licensed trades and mechanical technicians working on HVAC equipment, plumbing fixtures, and electrical panel components regularly reach for sockets in this size range.

This socket is suited for both residential and light commercial service work where an 11mm hex fastener is standard. Typical applications include equipment mounting hardware, panel fasteners, and mechanical assembly work. The 6-point contact pattern distributes torque evenly across fastener flats, lowering the risk of rounding on worn or corroded hardware. It performs with both pneumatic and electric impact tools operating at standard 3/8 inch drive torque ranges.

Key Features

• 6-point hex drive contact pattern reduces fastener rounding under impact load
• Alloy steel construction rated for impact tool use
• Magnetic socket style retains fasteners during placement
• Compact 1-5/32 inch overall length fits in confined work areas
• Lifetime warranty coverage from the manufacturer
• 3/8 inch drive mates with standard impact wrenches and ratchets

Compatibility

Designed as an OEM-style replacement and service socket compatible with standard 3/8 inch drive impact wrenches, torque wrenches, and ratchets accepting 11mm hex fasteners.

Installation Notes

Installation is performed by licensed mechanics, HVAC technicians, plumbers, and electricians as part of equipment service and assembly work. Confirm the drive tool is depressurized or powered down before changing sockets on pneumatic or electric impact wrenches. Inspect the socket shank and drive square for wear or cracks before each use and replace if deformation is present. Do not use impact sockets on manual torque wrenches where impact-rated materials are not required by the tool manufacturer.