Features 3 SPEEDS This mini wireless rotary tool supports 3 speed settings with 5,000RPM, 10,000RPM and 18,000RPM, providing excellent charging speed. Applicable material: equipped with 6 accessories, suitable for materials such as wood, soft metal, plastic and stone, with a wide range of applications. Wide range of uses: the motor provides maximum stability and runs perfectly in various applications, for carving, polishing, cleaning and nail cutting. Comfortable handle: this cordless grinder features a portable handle, which is suitable for long-term gripping and flexible operation, greatly improving efficiency. With battery: this mini grinder has a built-in 300mAh lithium battery and a convenient micro USB charging to ensure use anytime and anywhere. Specification: Item Type:Mini Grinding Pen Battery: 1 x 10440 300 mAh lithium-ion battery (built-in battery). Speed: 5000 RPM, 10000 RPM, 18000 RPM (short press to switch) CW CCW switching: long press to switch Power: 10W Grinding head diameter: 2.35mm Package list: 1 x grinding pen. 6 x accessories. 1 x USB cable. 2 x storage boxes. Package List 1 x Grinder Pen 6 x Accessories 1 x USB Cable 2 x Storage Boxes