Features 3 SPEEDS: This mini cordless rotating tool supports 3 speed adjustment, with 5000RPM, 10000RPM, 18000RPM, with excellent load speed. MULTIPLE USAGES: The motor provides maximum stability and runs perfectly in different applications, for carving, polishing, cleaning, and nail trimming. WITH BATTERY: This mini grinder has a built in 300mAh lithium battery and convenient micro USB charging to ensure anytime, anywhere use. COMFORTABLE GRIP: This cordless grinder has a portable handle, suitable for long term grasping, flexible operation, and greatly improves efficiency. APPLICABLE MATERIAL: Equipped with 6 accessories, suitable for materials such as wood, soft metal, plastic, and stone, with a wide range of applications. Specification: Item Type: Mini Grinder Pen Battery: 1 x 10440 300mAh Lithium Ion Battery (built in battery) Speed: 5000RPM, 10000RPM, 18000RPM (short press to switch) CW CCW Switching: Long press to switch Power: 10W Grinding Head Diameter: 2.35mm Package List:1 x Grinder Pen 6 x Accessories1 x USB Cable2 x Storage Boxes Package List 1 x Grinder Pen 6 x Accessories 1 x USB Cable 2 x Storage Boxes