Pro-source 5520004332PRO Air Die Grinder 0.3 Hp 1/4 Inch Collet

Product Description

The PRO-SOURCE 5520004332PRO is a straight-handle air die grinder designed for precision grinding, deburring, and surface finishing in shop and field environments. Powered by compressed air at 90 psi and 4 CFM, it delivers 0.30 HP and spins a 1/4 inch collet at 25,000 RPM. The front exhaust configuration directs airflow away from the work surface, reducing debris disturbance and keeping the operator's line of sight clear. This grinder is sized for single-handed use and weighs 1.25 pounds, making it practical for extended use in tight spaces. Machinists, fabricators, and maintenance technicians are the typical end users.

This air die grinder is suited for metalworking tasks including weld cleanup, port work, mold finishing, and general material removal on metal, plastic, and composite surfaces. The straight handle style fits standard inline grip techniques and works well in automotive, manufacturing, and MRO (maintenance, repair, and operations) settings. It accepts standard 1/4 inch shank mounted points, carbide burrs, and grinding stones. Both production floor and job site use are supported provided a consistent compressed air supply at 90 psi is available.

Key Features

• 0.30 HP air motor delivers consistent power for grinding and deburring tasks
• 25,000 RPM spindle speed suits a wide range of mounted abrasive accessories
• 1/4 inch collet accepts standard shank carbide burrs, grinding stones, and mounted points
• Front exhaust directs spent air away from the work area
• Straight handle design supports inline grip for controlled material removal
• Lightweight at 1.25 pounds, reducing operator fatigue during extended use

Compatibility

Designed for use with any compressed air system supplying a steady 90 psi and a minimum 4 CFM free air delivery. Accepts all standard 1/4 inch shank rotary accessories including carbide burrs, mounted grinding points, and abrasive stones.

Installation Notes

Connection to a compressed air supply should be made using a properly rated air line and fitting matched to the tool inlet size. Verify the supply pressure does not exceed the rated 90 psi before operation, and use an inline air filter-regulator-lubricator (FRL) unit to protect the air motor and extend service life. Always disconnect the air supply before changing collet accessories. Eye and face protection is required during operation per standard shop safety practice.