This item is a 125mm corded electric angle grinder, specifically a Diold Mshu-1.3-01.
Power: 1300 Watts
Voltage: 220-240V, 50/60Hz
Disc Diameter: 125mm (5 inches)
Speed: No-load speed ranges up to 12,000 RPM
Features: Ergonomic design with a side handle mount and a locking thumb switch.