Exquisite shape design, combining function, aesthetics and environmental protection into one, strong and firm. Adopting steel casting; the product achieves high precision, low noise, and high abrasion resistance. Adopting full copper coils, pure copper coils made of, so that the product magnetic more stable. Safer to use. Made of engineering plastics and rubber materials, super electrostatic, low voltage safety. Small size and light weight, can be dry grinding (idle), long life., Manufacturer: TRDEWR