Proto J74418MP Impact Socket 1/2 in Drive 18mm 6-point

Product Description

The PROTO J74418MP is a 6-point impact socket designed for heavy-duty fastener work in professional trade and industrial environments. Built from alloy steel, it accepts a 1/2 inch drive and fits 18mm hex fasteners. The 6-point design concentrates force on the flats of the fastener rather than the corners, reducing the risk of rounding during high-torque impact use. At 2-11/16 inches overall length, it provides adequate reach for recessed fasteners without adding unnecessary bulk. This socket meets ASME B107.2 standards and is suited for use with 1/2 inch drive impact wrenches and ratchets used by automotive technicians, HVAC installers, electricians, and general trade professionals.

The J74418MP is intended for use in applications where a standard chrome socket would not withstand the shock loads generated by pneumatic or cordless impact tools. Its alloy steel construction and 6-point geometry make it appropriate for high-torque fastener installation and removal on mechanical, electrical, and HVAC equipment. The universal style designation indicates broad applicability across common fastener configurations encountered in residential and commercial trade work.

Key Features

• 1/2 inch drive accepts standard impact wrenches and ratchets
• 18mm hex socket size for metric fastener applications
• 6-point design reduces fastener rounding under high torque
• Alloy steel construction rated for impact tool use
• Meets ASME B107.2 specification
• Compact 2-11/16 inch overall length for general access

Compatibility

Designed as an OEM-style replacement and standard fitment impact socket for use with 1/2 inch drive impact wrenches, air ratchets, and torque tools requiring an 18mm 6-point socket.

Installation Notes

Install and remove this socket only with tools rated for impact use. Do not use impact sockets on torque-limiting tools unless the tool manufacturer specifically permits it. Inspect the socket for cracks or deformation before each use, and remove from service if damage is found. Always ensure the drive retainer or pin-and-ring detent is fully engaged before applying torque.