Proto J199WP Air Impact Wrench 1 in Drive 2500 Ft/lb

Product Description

The PROTO J199WP is a heavy-duty pneumatic impact wrench built around a 1-inch square drive and rated for 2,500 ft/lb of maximum torque. Driven by shop air at 90 psi and 12 CFM, it reaches 5,000 RPM with an impact rate of 900 impacts per minute. The pistol grip handle keeps the tool balanced during sustained use on large fasteners. This wrench is designed for licensed mechanics, millwrights, heavy-equipment technicians, and industrial maintenance professionals who work with large-diameter fasteners on structural assemblies, drivetrain components, and heavy machinery.

The J199WP fits applications where a 1/2-inch or 3/4-inch drive wrench lacks the torque output required. Typical use cases include truck and heavy-equipment wheel service, industrial flange work, structural steel assembly, and large compressor or pump maintenance. The 1/2-inch NPTF inlet connects to standard shop-air hose fittings. The tool ships with hangers included for tool storage and organization at the workstation.

Key Features

• 2,500 ft/lb maximum torque output for demanding heavy-duty fastener work
• 5,000 RPM free speed with 900 impacts per minute
• 1-inch square drive accepts large-diameter impact sockets
• 1/2-inch NPTF air inlet connects to standard shop-air supply lines
• Pistol grip handle design for balanced control during extended use
• Includes hangers for organized tool storage

Compatibility

Designed for use with 1-inch drive impact sockets in heavy-duty pneumatic tool applications requiring high-torque output at standard shop-air supply pressure.

Installation Notes

Installation and operation should be performed by qualified mechanics or industrial maintenance technicians familiar with pneumatic tool safety. Verify shop-air supply is regulated to 90 psi and that the air line delivers at least 12 CFM before connecting. Use only impact-rated sockets rated for 1-inch drive service — standard chrome sockets are not rated for impact use. Disconnect the air supply before changing sockets or performing any maintenance on the tool.