Specifications Battery Type Suitable for Makita 18V Battery not include Material Rubber MetalVibration Reduction YesTool Free Guard YesMotor Pure Copper BrushlessPower 800WSpindle Diameter 14mmFunction 3 speedsWheel diameter 125mmNo Load Speed 0 11000 RPM automatically changes the speed during operation Net Weight 1 8kgShaft Lock Hold to change the wheelSlide Switch Conveniently located for one hand operationFeatures ● Small handle light weight small outdoor operation ● Any 5 cutting wheels or grinding wheels can work with this item ● The removable cover net prevents the entry of debris and prolongs life ● Copper core motor high power anti overload prevent burning machine ● Super heat dissipation three dimensional heat dissipation protect the motor ● Cordless working more convenient any where like outdoor or at high Altitude without any Cable Winding and power socket ● Motor with overheating voltage current overload protection system refuse to burn out the motor ● Brushless Motor efficiently uses energy to match torque and RPM to the changing demands of the application ● Brushless Motor eliminates carbon brushes Motor to run cooler and more efficiently for longer life ● Dustproof system and provides directed air flow to divert dust from vital components for enhanced durability and longer tool life ● Soft start suppresses start up reaction for smooth start ups and longer gear life ● Spiral bevel gears for smoother rotations and a more efficient tran