Dynabrade 51812 Straight Air Die Grinder 100000 Rpm

Product Description

The DYNABRADE 51812 is a straight air die grinder designed for precision material removal, deburring, porting, and finishing work in industrial and trade applications. It operates at up to 100,000 RPM with a 0.1 HP motor, making it well suited for fine grinding and detailing tasks that require high spindle speed in a compact, inline form factor. The tool accepts a 3/32 inch collet for small-diameter mounted points, carbide burrs, and abrasive bits. Air consumption is rated at 6 CFM at 90 psig operating pressure. A rear exhaust design directs air away from the work surface, keeping debris clear of the operator and the part.

This grinder is used in metal fabrication shops, automotive machine shops, tool and die operations, and general maintenance environments. It is suited for tasks such as port and cavity grinding, weld cleanup in tight areas, and precision surface finishing where a full-size grinder cannot access the work. The lever throttle provides consistent speed control during extended use. The included flexible air hose simplifies connection to shop air lines. This tool is typically operated by machinists, tool and die technicians, and maintenance professionals working with compressed air systems.

Key Features

• 100,000 RPM maximum speed for high-speed precision grinding and finishing
• 3/32 inch collet accepts small mounted points, burrs, and abrasive accessories
• Rear exhaust routes spent air away from the workpiece and operator
• Lever throttle provides tactile speed control during operation
• Includes a high-quality flexible air hose for direct connection to shop air
• CE Certified and EAC Certified for compliance in applicable markets

Compatibility

Designed for use with standard 3/32 inch shank mounted points, carbide burrs, and rotary abrasive accessories on compressed air systems supplying 90 psig at a minimum of 6 CFM.

Installation Notes

This tool is installed and serviced by machinists, maintenance technicians, or pneumatic tool specialists. Before connecting to an air supply, verify the line pressure does not exceed the rated 90 psig operating pressure and that the air supply is clean, dry, and lubricated per the manufacturer's tool maintenance guidelines. Always install the collet and mounted point securely before pressurizing the tool, and never exceed the rated RPM of the abrasive accessory being used. Disconnect the air supply before changing collets or accessories.