Features:All-in-1 Tool Set: perform a variety of tasks, including drilling, grinding, sharpening, sanding, polishing and engraving. Equipped with a broad range of acceories that can be installed on electric rotary tools such as grinders, electric drills.Mini Grinder: suitable for middle-sized and microscopic carvings, can be applied to handle ceramic, porcelain, plastic, metal, stone, modeling clay, walnut, wood and more smooth workpieces.Multiple Attachment Kit: comes with a variety kinds of attachments kept in a small plastic box, which includes different kinds of drill bits, grinding stone bits, felt bis, sanding drums, cut-off wheel, mandrels and collets.USB Rechargeable: built with Micro-USB port and rechargeable lithium battery for super convenient charging and cordle operation.5 Speed Level: adjustable different speeds meet more fine and delicate work.Compact & Lightweight: small enough to be held like a pen, which is easy for one-handed operation.Specifications:Color: Orange / Gray(Optional)Material: ABSOrange:Voltage: 4.2VSpeed: 7/8.5/10/11.5/13*1000rpmItem Size: 192 * 33 * 30mm / 7.56 * 1.30 * 1.18inItem Weight: 142g / 5.02ozPackage Weight: 378g / 13.33ozPackage Size: 22.7 * 12 * 5.7cm / 8.94 * 4.73 * 2.24inGray:Voltage: 3.7VSpeed: 3/6/9/12/15*1000rpmCollet Size: 3mmItem Size: 178 * 33 * 30mm / 7.01 * 1.30 * 1.18inItem Weight: 128g / 4.52ozPackage Weight: 256g / 9.04ozPackage Size: 21 * 7.2 * 5.5cm / 8.27 * 2.83 * 2.17inPacking List:Orange:1 * Grinder1 * USB Cable1 * Sanding Drum Mandrel1 * Wheel Mandrel1 * Felt Mandrel2 * Cut-off Wheel2 * Polishing Bit4 * Twist Drill Bit5 * Diamond Bit5 * Stone Grinding Bit6 * Collet28 * Sanding Sleeve1 * Acceory Case1 * Zipper Case1 * Manual (English)Gray:1 * Grinder1 * USB Cable1 * Sanding Drum Mandrel2 * Wheel Mandrel1 * Felt Mandrel3 * Cut-off Wheel3 * Diamond Cutting Wheel4 * Twist Drill Bit5 * Diamond Bit7 * Stone Grinding Bit5 * Collet10 * Sanding Sleeve1 * Acceory Case1 * Manual (English)