It can grind metal at high speed (Max 30,000RPM) and is very effective for rust removal, welding blending, metal polishing, etc. It can also be used for tile marble wood grinding.
The mini size is designed to get into tight places or focus on small areas, and can be used on a 3Inch 3/8Arbor Cutting Tool or with a mounting stem for use on die grinders and high speed drills.