Proto J7720H Impact Socket 3/8 in Drive 5/8 in 6-point Deep

Product Description

The PROTO J7720H is a deep-well impact socket designed for heavy-duty fastening and removal tasks in demanding trade environments. Built on a 3/8 inch drive, it accepts a 5/8 inch hex fastener and features a 6-point internal geometry that concentrates drive force on the flats of the fastener rather than the corners. At 2.75 inches overall length, the deep configuration provides clearance for recessed or stud-mounted fasteners that standard-depth sockets cannot reach. This socket is intended for use with 3/8 inch drive impact wrenches and ratchets in mechanical, HVAC, plumbing, and general trade applications.

The J7720H is suited for residential and commercial service work where fasteners are set below a surface or threaded onto extended studs. Typical applications include equipment panel removal, pipe flange work, equipment mounting hardware, and any mechanical assembly requiring a deep-reach 5/8 inch socket on a 3/8 inch impact tool. Its compact drive size makes it practical in confined spaces without sacrificing torque transfer to the fastener.

Key Features

• 3/8 inch drive fits standard impact wrenches and ratchets in that drive class
• 5/8 inch socket size for common hex fasteners across trade applications
• 6-point drive geometry reduces fastener rounding under high-torque impact use
• Deep-well length of 2.75 inches reaches recessed or stud-mounted fasteners
• Single-piece construction sized for one socket per package

Compatibility

Designed as an OEM-style deep impact socket for use with any 3/8 inch drive impact wrench, air ratchet, or hand ratchet requiring a 5/8 inch 6-point socket.

Installation Notes

Impact sockets are installed and removed by mechanical trades including HVAC technicians, plumbers, and pipefitters. Always use impact-rated sockets with impact drivers and air tools — standard chrome sockets are not rated for impact use and may fracture under load. Confirm the drive retainer or pin-and-ring is properly seated before applying torque. Inspect the socket for cracks or deformation before each use and remove from service if damaged.