Proto J77408MP Impact Socket 3/8 in Drive 8mm 6-point

Product Description

The PROTO J77408MP is a 3/8 inch drive impact socket designed for high-torque fastening and removal applications. Built from alloy steel, it features a 6-point hex drive geometry that delivers full contact with fastener flats, reducing rounding and slippage under impact loads. The socket measures 8mm and has an overall length of 2 inches, making it a compact, direct-fit option for tight access points. It conforms to ASME Spec B107.2, confirming dimensional and performance standards for hand and impact tools. Licensed HVAC techs, mechanics, and general trade professionals reach for this socket when impact driver performance and material durability are both required.

The J77408MP suits residential and light commercial service work where metric fasteners are common. Typical applications include equipment assembly, panel work, and mechanical system service involving 8mm hex fasteners. Its universal style design makes it a practical addition to any 3/8 inch drive impact set. The compact 2 inch overall length allows use in moderately confined spaces without requiring an extension in most standard service scenarios.

Key Features

• 3/8 inch drive fits standard impact wrenches and ratchets
• 8mm 6-point hex drive for full-face fastener contact and reduced cam-out
• Alloy steel construction rated for impact tool use
• 2 inch overall length for compact fitment in tight spaces
• Meets ASME B107.2 dimensional and performance standard
• Universal style for broad compatibility across 3/8 inch drive impact toolsets

Compatibility

Designed for use with standard 3/8 inch drive impact wrenches, ratchets, and extension bars requiring an 8mm 6-point metric socket.

Installation Notes

This socket is intended for use by trade professionals operating impact tools in mechanical, HVAC, or general service applications. Always ensure the drive tool is powered down or the pneumatic line is disconnected before changing sockets. Verify the socket is fully seated on the drive anvil before applying torque. Inspect the socket for cracks or deformation before each use and replace if damage is observed.