1. Multifunction: grinding,polishing,engraving 2. Jewelry making,model making,hobby&craft,dental 3. 300W, 8500RPM,75MM wheel Multi Function Jewelry Making Tool Multi Function,grinding,polishing,engraving Voltage:230V/50HZ OR 110V/60HZPhase:SingleInput Power:300WVariable Speed Control:0-85000RPMGrinding Wheel Size:75mm x 20mmGrinding Wheel Arbor Hole:10mmFlexible Shaft Collect:1-6mmFlexible Shaft ...