Proto J7418M Impact Socket 1/2 in Drive 18mm 6-point

Product Description

The PROTO J7418M is a 6-point impact socket designed for use with 1/2 inch drive impact wrenches and ratchets. Built for hex drive applications, it accepts an 18mm fastener and measures 1.5 inches overall length, making it a compact, straight-reach option for tight-clearance work. The 6-point contact geometry distributes torque evenly across the fastener flats, reducing rounding and improving grip under high-torque impact conditions. Weighing 0.24 pounds, the J7418M is a single-piece service item typically used by mechanics, millwrights, and general service technicians working on mechanical assemblies, automotive components, and industrial equipment.

This socket is suited for both shop and field use where a 1/2 inch drive impact tool is the standard. The 18mm size covers a wide range of metric fastener applications found in automotive, HVAC equipment mountings, plumbing fixture hardware, and general mechanical service. The compact 1.5-inch overall length allows access in moderately confined areas without requiring an extension in most standard applications.

Key Features

• 1/2 inch drive fits standard impact wrenches and ratchets
• 18mm 6-point hex socket geometry for secure fastener engagement
• 1.5 inch overall length for compact reach
• Single-piece package quantity — sold individually
• Lightweight at 0.24 pounds for reduced hand fatigue during extended use

Compatibility

Designed as an OEM-style replacement and service socket compatible with standard 1/2 inch drive impact tools and ratchets requiring an 18mm metric hex socket.

Installation Notes

Installation and removal work with this socket should be performed by qualified mechanics or service technicians familiar with impact tool operation. Ensure the socket is fully seated on the drive anvil and fastener before applying torque. Inspect the socket for cracks or deformation before each use, and never use impact sockets with hand-ratchet torque wrenches unless the tool is rated for impact use.