With different accessories, this kind of electric grinder can be used for carving, polishing, cutting and drilling of multiple materials. With high machining efficiency, it is your nice helper.Features:Lithium batteries are equipped with Electronic Cell Protection (ECP), which can prevent lithium batteries from overcharging and overloading and improve battery life.5 speed speed adjustment(3000-15000rpm), the speed from low to high, basic to meet different needs.The machine has novel appearance, exquisite workmanship, suitable for handheld operation, convenient and durable.The machine uses 2000mAh large capacity power battery, USB charging port design, support quick charging.The machine with lighting, for stone lovers to design, also can be used for emergency lighting.It is excellent for kinds of material engraving and grinding, such as wood, stone, peach-pit, egg, crafts, glass, ceramics, and etc. Manual sculpture, polished jade, stone, glass, wood, computer case, circuit boards, PC material drilling.Specifications:Color: Black / Red (Optional)Material: ABSVoltage: 3.7VCollet Size: 3mmSpeed: 3/6/9/12/15*1000 rpm (3000-15000rpm)Li-ion Battery Charger: DC5V/2A(input), DC3.7V/500mA(output)Battery: 3.7V, 2000mAhItem Size: 178 * 33 * 30mm / 7.01 * 1.30 * 1.18ininItem Weight: 133g / 4.71ozPackage Weight: 266g / 9.40ozPackage Size: 21.2 * 7.2 * 5.7cm / 8.35 * 2.83 * 2.24inPacking List:1 * Grinder1 * USB Cable1 * Li-ion Battery Charger1 * Sanding Drum Mandrel1 * Wheel Mandrel1 * Felt Mandrel 1 * Cut-off Wheel2 * Felt Polishing Wheel2 * Diamond Bit3 * Twist Drill Bit3 * Sanding Sleeve5 * Stone Grinding Bit5 * Collet1 * Accessory Case1 * Manual (English)