Dynabrade ECU4 Right Angle Cut-off Grinder 4 Inch Wheel

Product Description

The DYNABRADE ECU4 is a pneumatic right-angle cut-off grinder designed for metal cutting, grinding, and surface preparation in industrial and trade environments. It accepts a 4-inch cutting wheel, which is included, and operates at 90 psi with an air consumption of 5.1 SCFM. The rear exhaust directs airflow away from the workpiece and operator. The right-angle handle configuration gives the user better control in tight spaces and overhead cuts. This tool is typically installed and operated by metalworkers, fabricators, maintenance mechanics, and HVAC technicians working with sheet metal, pipe, and structural components.

The ECU4 is suited for light industrial fabrication, HVAC sheet metal work, plumbing rough-in, and general mechanical repair applications. The right-angle head allows access to corners, flanges, and confined work areas where inline grinders cannot reach. The included wheel means the tool is ready to use out of the box, making it a practical choice for service trucks and shop benches alike. Air-powered operation makes it appropriate for environments where corded electric tools present safety concerns.

Key Features

• 4-inch wheel diameter for standard cut-off and grinding tasks
• Right-angle handle design for access in confined or angled work areas
• Operates at 90 psi using a standard shop air supply
• 5.1 SCFM air consumption compatible with mid-size shop compressors
• Rear exhaust keeps debris and airflow directed away from the operator
• Cutting wheel included — no additional purchase required to begin use

Compatibility

Designed for use with standard 4-inch cut-off wheels on a 90 psi compressed air supply. Verify arbor size and wheel specifications before substituting the included wheel with aftermarket replacements.

Installation Notes

Pneumatic cut-off grinders are serviced and operated by qualified mechanics and fabricators familiar with compressed air tool safety. Before attaching or changing the wheel, disconnect the air supply line completely. Always verify that the air supply pressure does not exceed the tool rating and that the compressor output is regulated accordingly. Use appropriate personal protective equipment including eye protection and cut-resistant gloves when operating this tool.