DescriptionModel Number : Electric GrinderMaterial: : Aluminium AlloyBattery: : 1 x 18650 lithium batteryOutput Voltage: : 550MA/4.2VInput Voltage: : AC100-240V/47-63HZPower Supply: : EU Plug, US PlugSize: : Approx. 20 x 2.5 x 2.5cm / 7.9 x 1 x 1inchWeight: : Approx. 250gElectric Nail Drill Machine Tool Wireless Engraving Pen Grinding Milling Polishing Tools File Nail Pedicure Drill Equipment ToolsFeatures:The fuselage shell is made of aluminum alloy, and the surface is treated with oxidized sand.Multi-purpose Chucks - Widely application range, greatly improve the concentricity.Widely used for grinding, polishing, drilling, cutting, carving and so on.Quality machine bearing, can effectively improve the accuracy.Lightweight design and comfortable to the handle.Specification:Item Type: Electric GrinderMaterial: Aluminium AlloyBattery: 1 x 18650 lithium batteryOutput Voltage: 550MA/4.2VInput Voltage: AC100-240V/47-63HZPower Supply: EU Plug, US PlugSize: Approx. 20 x 2.5 x 2.5cm / 7.9 x 1 x 1inchWeight: Approx. 250gPackage list:1 x Electric Grinder Pen1 x 18650 lithium battery1 x Charger