Long Lasting Power: Equipped with a lithium ion rechargeable battery, this mini grinder provides power with a capacity of 300mAh. Variable Speed Control: Select from a speed range of 0 to 18000r/min and choose from three speeds for precise tool control and maximum accessory versatility. Compact and : Slim and , this mini grinder is incredibly portable, making it convenient to carry anywhere. Comfortable Grip: Designed with a non slip handle, this mini grinder offers a comfortable grip that provides improved control and stability during use. Versatile Engraving and Polishing Tool: From carving and engraving on precious stones to detailed lettering and small scale polishing tasks, this mini grinder is for a wide range of applications, allowing you to unleash your creativity. Color: As Shown Material: Aluminum Alloy Package Contents: 1 * mini electric screwdriver 1 * English instruction manual 1 * data cable Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.