Name: Multifunctional DIY Grinder Set
Input voltage: AC 100-240V
Working voltage: DC 12-24V
Motor model: 775
Motor material: all copper
Motor speed: 3000-6000RPM
Motor shaft diameter: 5MM
Grinding wheel size: 75x20x10MM
Polishing disc diameter: 4 inch
Drill chuck: B12 (holding range 1.5-10MM)