Pro-source Pro-SM-51-5100 Air Die Grinder 0.5 Hp

Product Description

The PRO-SOURCE Pro-SM-51-5100 is a straight-handle air die grinder built for precision grinding, deburring, and surface finishing in shop and field environments. It runs at 20000 RPM on a 0.5 horsepower air motor, accepting a 1/4-inch collet for standard die grinder bits, carbide burrs, and mounted points. The tool requires 90 psi inlet pressure and consumes 3.9 CFM at load. Exhaust routes out the rear of the handle, directing air away from the work surface and the operator. Weighing 1.46 pounds, it is light enough for extended single-hand use without significant fatigue. Machinists, fabricators, and maintenance mechanics are the primary users.

This die grinder is suited for metalworking, weld preparation, port work, and general deburring tasks in both production and maintenance settings. The straight handle profile allows access to recessed areas and bores where right-angle grinders cannot reach. It is appropriate for use with air supply systems delivering a consistent 90 psi at the tool inlet. At 7.44 inches in length and 1.97 inches in width, it fits comfortably in tight workspaces. The rear exhaust design keeps chips and coolant mist from blowing back across the operator during use.

Key Features

• 0.5 HP air motor with 20000 RPM operating speed and a range of 18000 to 24999 RPM
• 1/4-inch collet accepts standard die grinder bits, burrs, and mounted points
• Rear exhaust directs airflow away from the work surface and operator
• 3.9 CFM air consumption at 90 psi operating pressure
• Straight handle design for access to bores, ports, and recessed geometry
• Compact at 7.44 inches long and 1.46 pounds for reduced fatigue during extended use

Compatibility

Designed for use with standard 1/4-inch shank die grinder accessories including carbide burrs, grinding stones, and mounted abrasive points. Requires an air supply capable of sustaining 90 psi at 3.9 CFM or greater at the tool inlet.

Installation Notes

Connection to the air supply line should be made using a properly rated 1/4-inch NPT air fitting and whip hose. Verify the compressor and supply line can maintain 90 psi under continuous load before operating. Disconnect the air supply before changing collet accessories. Follow shop safety protocols and applicable OSHA standards for compressed air tool operation, including the use of eye protection.