This is a kind of multifunctional grinding tool, adopts full-copper motor, makes it has more stable and smooth performance, and provides long service life. 19500rpm high rotation speed for reliable and productive work. It can be used for surface conditioning and grinding or iron cutting, and home improvement, like cutting and polishing ceramic tile, wood, stone, steel and etc.. Features: Adopts full-copper motor, makes it has more stable and smooth performance, and provides long service life. 19500rpm high rotation speed for reliable and productive work. High speed, high efficiency with low noise, with fine durability. Dual thicker high intensity bearings for finer cutting effect. Conform to human engineering handle design, one-hand operation, convenient press switch for easy grasping and use. Thickened baffle design reduces workpiece debris splashing into the machine, makes it more safer. There are vent holes on the outshell, high heat dissipation for cooling the operating mechanism