Proto J7438M Impact Socket 1/2 in Drive 38mm 6-point

Product Description

The PROTO J7438M is a 38mm, 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 delivers the torque capacity needed for impact wrench applications without cracking or rounding fasteners. The 6-point contact geometry distributes force evenly across hex fastener flats, reducing the risk of fastener damage under high-torque conditions. At 2-3/8 inches overall length, this socket fits standard impact wrench setups where clearance and reach are equally important. Automotive technicians, heavy equipment mechanics, and industrial maintenance crews are the primary users of this tool.

This socket is suited for use in automotive repair, fleet maintenance, industrial assembly, and mechanical service applications where a 38mm hex fastener is encountered. The 1/2 inch drive is the most common impact drive size in shop environments, making this socket compatible with a wide range of pneumatic and electric impact wrenches. It is appropriate for both shop-floor production use and field service work where reliable, repeatable torque application is required.

Key Features

• 38mm socket size for large hex fastener applications
• 1/2 inch drive fits standard impact wrenches
• 6-point hex drive geometry reduces fastener rounding under impact torque
• Alloy steel construction provides impact-rated strength and durability
• 2-3/8 inch overall length balances reach and clearance in tight spaces
• Meets ASME B107.33M specification for impact sockets
• Limited lifetime warranty from the manufacturer

Compatibility

Designed as an OEM-style replacement and standard fitment impact socket for 1/2 inch drive pneumatic and electric impact wrenches requiring a 38mm 6-point hex socket.

Installation Notes

This socket is installed by professional mechanics and industrial technicians using 1/2 inch drive impact wrenches. Always verify the drive retainer pin and ring are fully engaged before applying torque. Do not use impact sockets with standard ratchets or torque wrenches, as the metallurgy and wall thickness are optimized for impact loads only. Inspect the socket for cracks or deformation before each use and remove from service if damage is found.