Proto J7218PF Power Socket 3/8 in Drive 9/16 in Hex

Product Description

The PROTO J7218PF is a 6-point power socket designed for high-torque fastening applications in mechanical, industrial, and trade environments. Built on a 3/8 inch drive, it accepts a 9/16 inch hex fastener and features an integrated magnetic retention design that holds fasteners securely during installation and removal. The black finish provides corrosion resistance for regular shop and field use. Licensed tradespeople and experienced mechanics working on HVAC equipment, plumbing fixtures, electrical panels, and general mechanical assemblies will find this socket well-suited for impact and ratchet applications where fastener retention matters.

This socket is appropriate for both residential and commercial service work where a 3/8 inch drive tool is the preferred or required size. The magnetic feature is particularly useful in confined spaces or overhead applications where dropped fasteners are a common problem. It is sold individually and is compatible with standard 3/8 inch drive ratchets, extensions, and impact wrenches. Technicians across HVAC, plumbing, electrical, and general mechanical trades will find this a practical addition to a service kit.

Key Features

• 3/8 inch drive fits standard ratchets, extensions, and impact wrenches
• 9/16 inch hex size covers a common fastener dimension across multiple trades
• 6-point design maximizes contact with fastener flats, reducing rounding risk under torque
• Magnetic retention holds fasteners in place during installation and removal
• Black finish for corrosion resistance in shop and field conditions
• Lifetime warranty coverage from the manufacturer

Compatibility

Designed as a standard 3/8 inch drive power socket compatible with 3/8 inch drive ratchets, torque wrenches, extensions, and impact drivers accepting 9/16 inch hex fasteners.

Installation Notes

Install and remove this socket using a 3/8 inch drive ratchet or impact wrench. Ensure the fastener is fully seated in the socket before applying torque to avoid slippage or fastener damage. Inspect the magnetic retention feature periodically to confirm it holds the fastener securely, particularly before overhead or confined-space work. Follow applicable service procedures and safety lockout protocols for the equipment being serviced.